Home / 4,987.86-7,479.17-2,213.34

Finding the Fourth Proportional to 4,987.86, 7,479.17 and 2,213.34

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Solution

The fourth proportional to 4,987.86, 7,479.17 and 2,213.34 is: 3,318.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.86 : 7,479.17 = 2,213.34 : x
  2. Step 2: Convert to fraction form
    4,987.86/7,479.17 = 2,213.34/x
  3. Step 3: Cross multiply
    4,987.86x = 7,479.17 × 2,213.34
  4. Step 4: Simplify right side
    4,987.86x = 16,553,935.06
  5. Step 5: Solve for x
    x = 16,553,935.06/4,987.86
  6. Step 6: Final answer
    x = 3,318.85

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1.5x scale

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.