Home / 3,545.90-5,318.42-949.04

Finding the Fourth Proportional to 3,545.90, 5,318.42 and 949.04

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Solution

The fourth proportional to 3,545.90, 5,318.42 and 949.04 is: 1,423.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.90 : 5,318.42 = 949.04 : x
  2. Step 2: Convert to fraction form
    3,545.90/5,318.42 = 949.04/x
  3. Step 3: Cross multiply
    3,545.90x = 5,318.42 × 949.04
  4. Step 4: Simplify right side
    3,545.90x = 5,047,393.32
  5. Step 5: Solve for x
    x = 5,047,393.32/3,545.90
  6. Step 6: Final answer
    x = 1,423.44

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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.