Home / 1,545.24-2,315.70-1,342.20

Finding the Fourth Proportional to 1,545.24, 2,315.70 and 1,342.20

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Solution

The fourth proportional to 1,545.24, 2,315.70 and 1,342.20 is: 2,011.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.24 : 2,315.70 = 1,342.20 : x
  2. Step 2: Convert to fraction form
    1,545.24/2,315.70 = 1,342.20/x
  3. Step 3: Cross multiply
    1,545.24x = 2,315.70 × 1,342.20
  4. Step 4: Simplify right side
    1,545.24x = 3,108,132.54
  5. Step 5: Solve for x
    x = 3,108,132.54/1,545.24
  6. Step 6: Final answer
    x = 2,011.42

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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.