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Finding the Fourth Proportional to 7,390.71, 10,199.25 and 4,407.89

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Solution

The fourth proportional to 7,390.71, 10,199.25 and 4,407.89 is: 6,082.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.71 : 10,199.25 = 4,407.89 : x
  2. Step 2: Convert to fraction form
    7,390.71/10,199.25 = 4,407.89/x
  3. Step 3: Cross multiply
    7,390.71x = 10,199.25 × 4,407.89
  4. Step 4: Simplify right side
    7,390.71x = 44,957,121.09
  5. Step 5: Solve for x
    x = 44,957,121.09/7,390.71
  6. Step 6: Final answer
    x = 6,082.92

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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.