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Finding the Fourth Proportional to 5,666.19, 7,815.49 and 3,424.20

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Solution

The fourth proportional to 5,666.19, 7,815.49 and 3,424.20 is: 4,723.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,666.19 : 7,815.49 = 3,424.20 : x
  2. Step 2: Convert to fraction form
    5,666.19/7,815.49 = 3,424.20/x
  3. Step 3: Cross multiply
    5,666.19x = 7,815.49 × 3,424.20
  4. Step 4: Simplify right side
    5,666.19x = 26,761,800.86
  5. Step 5: Solve for x
    x = 26,761,800.86/5,666.19
  6. Step 6: Final answer
    x = 4,723.07

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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.