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Finding the Fourth Proportional to 2,562.99, 3,844.49 and 831.63

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Solution

The fourth proportional to 2,562.99, 3,844.49 and 831.63 is: 1,247.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,562.99 : 3,844.49 = 831.63 : x
  2. Step 2: Convert to fraction form
    2,562.99/3,844.49 = 831.63/x
  3. Step 3: Cross multiply
    2,562.99x = 3,844.49 × 831.63
  4. Step 4: Simplify right side
    2,562.99x = 3,197,189.06
  5. Step 5: Solve for x
    x = 3,197,189.06/2,562.99
  6. Step 6: Final answer
    x = 1,247.45

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.