Home / 1,545.18-2,317.02-814.56

Finding the Fourth Proportional to 1,545.18, 2,317.02 and 814.56

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Solution

The fourth proportional to 1,545.18, 2,317.02 and 814.56 is: 1,221.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.18 : 2,317.02 = 814.56 : x
  2. Step 2: Convert to fraction form
    1,545.18/2,317.02 = 814.56/x
  3. Step 3: Cross multiply
    1,545.18x = 2,317.02 × 814.56
  4. Step 4: Simplify right side
    1,545.18x = 1,887,351.81
  5. Step 5: Solve for x
    x = 1,887,351.81/1,545.18
  6. Step 6: Final answer
    x = 1,221.44

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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.