Home / 1,545.35-2,317.50-505.08

Finding the Fourth Proportional to 1,545.35, 2,317.50 and 505.08

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Solution

The fourth proportional to 1,545.35, 2,317.50 and 505.08 is: 757.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.35 : 2,317.50 = 505.08 : x
  2. Step 2: Convert to fraction form
    1,545.35/2,317.50 = 505.08/x
  3. Step 3: Cross multiply
    1,545.35x = 2,317.50 × 505.08
  4. Step 4: Simplify right side
    1,545.35x = 1,170,522.90
  5. Step 5: Solve for x
    x = 1,170,522.90/1,545.35
  6. Step 6: Final answer
    x = 757.45

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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.