Home / 4,390.62-6,057.24-2,877.78

Finding the Fourth Proportional to 4,390.62, 6,057.24 and 2,877.78

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Solution

The fourth proportional to 4,390.62, 6,057.24 and 2,877.78 is: 3,970.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,390.62 : 6,057.24 = 2,877.78 : x
  2. Step 2: Convert to fraction form
    4,390.62/6,057.24 = 2,877.78/x
  3. Step 3: Cross multiply
    4,390.62x = 6,057.24 × 2,877.78
  4. Step 4: Simplify right side
    4,390.62x = 17,431,404.13
  5. Step 5: Solve for x
    x = 17,431,404.13/4,390.62
  6. Step 6: Final answer
    x = 3,970.15

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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.