Home / 7,385.31-11,079.36-2,389.02

Finding the Fourth Proportional to 7,385.31, 11,079.36 and 2,389.02

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Solution

The fourth proportional to 7,385.31, 11,079.36 and 2,389.02 is: 3,583.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385.31 : 11,079.36 = 2,389.02 : x
  2. Step 2: Convert to fraction form
    7,385.31/11,079.36 = 2,389.02/x
  3. Step 3: Cross multiply
    7,385.31x = 11,079.36 × 2,389.02
  4. Step 4: Simplify right side
    7,385.31x = 26,468,800.68
  5. Step 5: Solve for x
    x = 26,468,800.68/7,385.31
  6. Step 6: Final answer
    x = 3,583.98

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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.