Home / 7,429.08-10,251.64-4,071.28

Finding the Fourth Proportional to 7,429.08, 10,251.64 and 4,071.28

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Solution

The fourth proportional to 7,429.08, 10,251.64 and 4,071.28 is: 5,618.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.08 : 10,251.64 = 4,071.28 : x
  2. Step 2: Convert to fraction form
    7,429.08/10,251.64 = 4,071.28/x
  3. Step 3: Cross multiply
    7,429.08x = 10,251.64 × 4,071.28
  4. Step 4: Simplify right side
    7,429.08x = 41,737,296.90
  5. Step 5: Solve for x
    x = 41,737,296.90/7,429.08
  6. Step 6: Final answer
    x = 5,618.10

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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.