Home / 1,545.50-2,318.05-558.21

Finding the Fourth Proportional to 1,545.50, 2,318.05 and 558.21

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Solution

The fourth proportional to 1,545.50, 2,318.05 and 558.21 is: 837.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.50 : 2,318.05 = 558.21 : x
  2. Step 2: Convert to fraction form
    1,545.50/2,318.05 = 558.21/x
  3. Step 3: Cross multiply
    1,545.50x = 2,318.05 × 558.21
  4. Step 4: Simplify right side
    1,545.50x = 1,293,958.69
  5. Step 5: Solve for x
    x = 1,293,958.69/1,545.50
  6. Step 6: Final answer
    x = 837.24

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1.5x scale

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.