Home / 2,663.28-3,674.77-1,543.66

Finding the Fourth Proportional to 2,663.28, 3,674.77 and 1,543.66

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Solution

The fourth proportional to 2,663.28, 3,674.77 and 1,543.66 is: 2,129.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,663.28 : 3,674.77 = 1,543.66 : x
  2. Step 2: Convert to fraction form
    2,663.28/3,674.77 = 1,543.66/x
  3. Step 3: Cross multiply
    2,663.28x = 3,674.77 × 1,543.66
  4. Step 4: Simplify right side
    2,663.28x = 5,672,582.41
  5. Step 5: Solve for x
    x = 5,672,582.41/2,663.28
  6. Step 6: Final answer
    x = 2,129.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.