Home / 5,320.80-7,979.64-2,545.92

Finding the Fourth Proportional to 5,320.80, 7,979.64 and 2,545.92

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Solution

The fourth proportional to 5,320.80, 7,979.64 and 2,545.92 is: 3,818.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.80 : 7,979.64 = 2,545.92 : x
  2. Step 2: Convert to fraction form
    5,320.80/7,979.64 = 2,545.92/x
  3. Step 3: Cross multiply
    5,320.80x = 7,979.64 × 2,545.92
  4. Step 4: Simplify right side
    5,320.80x = 20,315,525.07
  5. Step 5: Solve for x
    x = 20,315,525.07/5,320.80
  6. Step 6: Final answer
    x = 3,818.13

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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.