Home / 5,377.20-7,419.50-3,018.76

Finding the Fourth Proportional to 5,377.20, 7,419.50 and 3,018.76

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Solution

The fourth proportional to 5,377.20, 7,419.50 and 3,018.76 is: 4,165.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.20 : 7,419.50 = 3,018.76 : x
  2. Step 2: Convert to fraction form
    5,377.20/7,419.50 = 3,018.76/x
  3. Step 3: Cross multiply
    5,377.20x = 7,419.50 × 3,018.76
  4. Step 4: Simplify right side
    5,377.20x = 22,397,689.82
  5. Step 5: Solve for x
    x = 22,397,689.82/5,377.20
  6. Step 6: Final answer
    x = 4,165.31

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1.5x scale

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.