Home / 6,545.47-9,818.51-1,865.80

Finding the Fourth Proportional to 6,545.47, 9,818.51 and 1,865.80

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Solution

The fourth proportional to 6,545.47, 9,818.51 and 1,865.80 is: 2,798.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,545.47 : 9,818.51 = 1,865.80 : x
  2. Step 2: Convert to fraction form
    6,545.47/9,818.51 = 1,865.80/x
  3. Step 3: Cross multiply
    6,545.47x = 9,818.51 × 1,865.80
  4. Step 4: Simplify right side
    6,545.47x = 18,319,317.54
  5. Step 5: Solve for x
    x = 18,319,317.54/6,545.47
  6. Step 6: Final answer
    x = 2,798.78

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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.