Home / 7,489.66-11,237.76-2,875.90

Finding the Fourth Proportional to 7,489.66, 11,237.76 and 2,875.90

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Solution

The fourth proportional to 7,489.66, 11,237.76 and 2,875.90 is: 4,315.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.66 : 11,237.76 = 2,875.90 : x
  2. Step 2: Convert to fraction form
    7,489.66/11,237.76 = 2,875.90/x
  3. Step 3: Cross multiply
    7,489.66x = 11,237.76 × 2,875.90
  4. Step 4: Simplify right side
    7,489.66x = 32,318,673.98
  5. Step 5: Solve for x
    x = 32,318,673.98/7,489.66
  6. Step 6: Final answer
    x = 4,315.11

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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.