Home / 2,247.38-3,101.06-1,277.20

Finding the Fourth Proportional to 2,247.38, 3,101.06 and 1,277.20

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Solution

The fourth proportional to 2,247.38, 3,101.06 and 1,277.20 is: 1,762.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,247.38 : 3,101.06 = 1,277.20 : x
  2. Step 2: Convert to fraction form
    2,247.38/3,101.06 = 1,277.20/x
  3. Step 3: Cross multiply
    2,247.38x = 3,101.06 × 1,277.20
  4. Step 4: Simplify right side
    2,247.38x = 3,960,673.83
  5. Step 5: Solve for x
    x = 3,960,673.83/2,247.38
  6. Step 6: Final answer
    x = 1,762.35

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.