Home / 1,545.24-2,147.13-1,527

Finding the Fourth Proportional to 1,545.24, 2,147.13 and 1,527

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Solution

The fourth proportional to 1,545.24, 2,147.13 and 1,527 is: 2,121.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.24 : 2,147.13 = 1,527 : x
  2. Step 2: Convert to fraction form
    1,545.24/2,147.13 = 1,527/x
  3. Step 3: Cross multiply
    1,545.24x = 2,147.13 × 1,527
  4. Step 4: Simplify right side
    1,545.24x = 3,278,667.51
  5. Step 5: Solve for x
    x = 3,278,667.51/1,545.24
  6. Step 6: Final answer
    x = 2,121.79

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.