Home / 6,545.20-9,816.32-1,865.12

Finding the Fourth Proportional to 6,545.20, 9,816.32 and 1,865.12

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Solution

The fourth proportional to 6,545.20, 9,816.32 and 1,865.12 is: 2,797.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,545.20 : 9,816.32 = 1,865.12 : x
  2. Step 2: Convert to fraction form
    6,545.20/9,816.32 = 1,865.12/x
  3. Step 3: Cross multiply
    6,545.20x = 9,816.32 × 1,865.12
  4. Step 4: Simplify right side
    6,545.20x = 18,308,614.76
  5. Step 5: Solve for x
    x = 18,308,614.76/6,545.20
  6. Step 6: Final answer
    x = 2,797.26

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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.