Home / 1,545.03-2,317.93-449.40

Finding the Fourth Proportional to 1,545.03, 2,317.93 and 449.40

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Solution

The fourth proportional to 1,545.03, 2,317.93 and 449.40 is: 674.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.03 : 2,317.93 = 449.40 : x
  2. Step 2: Convert to fraction form
    1,545.03/2,317.93 = 449.40/x
  3. Step 3: Cross multiply
    1,545.03x = 2,317.93 × 449.40
  4. Step 4: Simplify right side
    1,545.03x = 1,041,685.31
  5. Step 5: Solve for x
    x = 1,041,685.31/1,545.03
  6. Step 6: Final answer
    x = 674.22

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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.