Home / 1,545.32-2,318.00-621.30

Finding the Fourth Proportional to 1,545.32, 2,318.00 and 621.30

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Solution

The fourth proportional to 1,545.32, 2,318.00 and 621.30 is: 931.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.32 : 2,318.00 = 621.30 : x
  2. Step 2: Convert to fraction form
    1,545.32/2,318.00 = 621.30/x
  3. Step 3: Cross multiply
    1,545.32x = 2,318.00 × 621.30
  4. Step 4: Simplify right side
    1,545.32x = 1,440,170.29
  5. Step 5: Solve for x
    x = 1,440,170.29/1,545.32
  6. Step 6: Final answer
    x = 931.96

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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.