Home / 2,663.18-3,675.12-1,543.40

Finding the Fourth Proportional to 2,663.18, 3,675.12 and 1,543.40

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Solution

The fourth proportional to 2,663.18, 3,675.12 and 1,543.40 is: 2,129.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,663.18 : 3,675.12 = 1,543.40 : x
  2. Step 2: Convert to fraction form
    2,663.18/3,675.12 = 1,543.40/x
  3. Step 3: Cross multiply
    2,663.18x = 3,675.12 × 1,543.40
  4. Step 4: Simplify right side
    2,663.18x = 5,672,180.21
  5. Step 5: Solve for x
    x = 5,672,180.21/2,663.18
  6. Step 6: Final answer
    x = 2,129.85

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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.