Home / 5,377.17-7,420.07-3,018.86

Finding the Fourth Proportional to 5,377.17, 7,420.07 and 3,018.86

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Solution

The fourth proportional to 5,377.17, 7,420.07 and 3,018.86 is: 4,165.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.17 : 7,420.07 = 3,018.86 : x
  2. Step 2: Convert to fraction form
    5,377.17/7,420.07 = 3,018.86/x
  3. Step 3: Cross multiply
    5,377.17x = 7,420.07 × 3,018.86
  4. Step 4: Simplify right side
    5,377.17x = 22,400,122.97
  5. Step 5: Solve for x
    x = 22,400,122.97/5,377.17
  6. Step 6: Final answer
    x = 4,165.78

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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.