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Finding the Fourth Proportional to 3,022.99, 4,534.49 and 831.89

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Solution

The fourth proportional to 3,022.99, 4,534.49 and 831.89 is: 1,247.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,022.99 : 4,534.49 = 831.89 : x
  2. Step 2: Convert to fraction form
    3,022.99/4,534.49 = 831.89/x
  3. Step 3: Cross multiply
    3,022.99x = 4,534.49 × 831.89
  4. Step 4: Simplify right side
    3,022.99x = 3,772,196.89
  5. Step 5: Solve for x
    x = 3,772,196.89/3,022.99
  6. Step 6: Final answer
    x = 1,247.84

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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.