Home / 7,431.78-11,149.37-2,501.28

Finding the Fourth Proportional to 7,431.78, 11,149.37 and 2,501.28

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Solution

The fourth proportional to 7,431.78, 11,149.37 and 2,501.28 is: 3,752.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.78 : 11,149.37 = 2,501.28 : x
  2. Step 2: Convert to fraction form
    7,431.78/11,149.37 = 2,501.28/x
  3. Step 3: Cross multiply
    7,431.78x = 11,149.37 × 2,501.28
  4. Step 4: Simplify right side
    7,431.78x = 27,887,730.32
  5. Step 5: Solve for x
    x = 27,887,730.32/7,431.78
  6. Step 6: Final answer
    x = 3,752.50

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Double scale
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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.