Home / 7,308.38-10,085.54-3,951.20

Finding the Fourth Proportional to 7,308.38, 10,085.54 and 3,951.20

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Solution

The fourth proportional to 7,308.38, 10,085.54 and 3,951.20 is: 5,452.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,308.38 : 10,085.54 = 3,951.20 : x
  2. Step 2: Convert to fraction form
    7,308.38/10,085.54 = 3,951.20/x
  3. Step 3: Cross multiply
    7,308.38x = 10,085.54 × 3,951.20
  4. Step 4: Simplify right side
    7,308.38x = 39,849,945.10
  5. Step 5: Solve for x
    x = 39,849,945.10/7,308.38
  6. Step 6: Final answer
    x = 5,452.64

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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.