Home / 4,987.20-6,854.82-4,394.28

Finding the Fourth Proportional to 4,987.20, 6,854.82 and 4,394.28

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Solution

The fourth proportional to 4,987.20, 6,854.82 and 4,394.28 is: 6,039.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.20 : 6,854.82 = 4,394.28 : x
  2. Step 2: Convert to fraction form
    4,987.20/6,854.82 = 4,394.28/x
  3. Step 3: Cross multiply
    4,987.20x = 6,854.82 × 4,394.28
  4. Step 4: Simplify right side
    4,987.20x = 30,121,998.43
  5. Step 5: Solve for x
    x = 30,121,998.43/4,987.20
  6. Step 6: Final answer
    x = 6,039.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.