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Finding the Fourth Proportional to 7,900.65, 11,842.78 and 3,737.49

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Solution

The fourth proportional to 7,900.65, 11,842.78 and 3,737.49 is: 5,602.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.65 : 11,842.78 = 3,737.49 : x
  2. Step 2: Convert to fraction form
    7,900.65/11,842.78 = 3,737.49/x
  3. Step 3: Cross multiply
    7,900.65x = 11,842.78 × 3,737.49
  4. Step 4: Simplify right side
    7,900.65x = 44,262,278.55
  5. Step 5: Solve for x
    x = 44,262,278.55/7,900.65
  6. Step 6: Final answer
    x = 5,602.36

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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.