Home / 1,545.32-2,317.40-723.44

Finding the Fourth Proportional to 1,545.32, 2,317.40 and 723.44

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Solution

The fourth proportional to 1,545.32, 2,317.40 and 723.44 is: 1,084.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.32 : 2,317.40 = 723.44 : x
  2. Step 2: Convert to fraction form
    1,545.32/2,317.40 = 723.44/x
  3. Step 3: Cross multiply
    1,545.32x = 2,317.40 × 723.44
  4. Step 4: Simplify right side
    1,545.32x = 1,676,499.86
  5. Step 5: Solve for x
    x = 1,676,499.86/1,545.32
  6. Step 6: Final answer
    x = 1,084.89

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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.