Home / 1,932.49-2,898.54-545.80

Finding the Fourth Proportional to 1,932.49, 2,898.54 and 545.80

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Solution

The fourth proportional to 1,932.49, 2,898.54 and 545.80 is: 818.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932.49 : 2,898.54 = 545.80 : x
  2. Step 2: Convert to fraction form
    1,932.49/2,898.54 = 545.80/x
  3. Step 3: Cross multiply
    1,932.49x = 2,898.54 × 545.80
  4. Step 4: Simplify right side
    1,932.49x = 1,582,023.13
  5. Step 5: Solve for x
    x = 1,582,023.13/1,932.49
  6. Step 6: Final answer
    x = 818.65

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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.