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Finding the Fourth Proportional to 7,925.94, 10,937.87 and 4,389.21

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Solution

The fourth proportional to 7,925.94, 10,937.87 and 4,389.21 is: 6,057.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,925.94 : 10,937.87 = 4,389.21 : x
  2. Step 2: Convert to fraction form
    7,925.94/10,937.87 = 4,389.21/x
  3. Step 3: Cross multiply
    7,925.94x = 10,937.87 × 4,389.21
  4. Step 4: Simplify right side
    7,925.94x = 48,008,608.38
  5. Step 5: Solve for x
    x = 48,008,608.38/7,925.94
  6. Step 6: Final answer
    x = 6,057.15

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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.