Home / 3,108.64-4,663.56-1,377.28

Finding the Fourth Proportional to 3,108.64, 4,663.56 and 1,377.28

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Solution

The fourth proportional to 3,108.64, 4,663.56 and 1,377.28 is: 2,066.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.64 : 4,663.56 = 1,377.28 : x
  2. Step 2: Convert to fraction form
    3,108.64/4,663.56 = 1,377.28/x
  3. Step 3: Cross multiply
    3,108.64x = 4,663.56 × 1,377.28
  4. Step 4: Simplify right side
    3,108.64x = 6,423,027.92
  5. Step 5: Solve for x
    x = 6,423,027.92/3,108.64
  6. Step 6: Final answer
    x = 2,066.19

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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.