Home / 4,878.03-6,731.24-2,988.75

Finding the Fourth Proportional to 4,878.03, 6,731.24 and 2,988.75

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Solution

The fourth proportional to 4,878.03, 6,731.24 and 2,988.75 is: 4,124.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.03 : 6,731.24 = 2,988.75 : x
  2. Step 2: Convert to fraction form
    4,878.03/6,731.24 = 2,988.75/x
  3. Step 3: Cross multiply
    4,878.03x = 6,731.24 × 2,988.75
  4. Step 4: Simplify right side
    4,878.03x = 20,117,978.61
  5. Step 5: Solve for x
    x = 20,117,978.61/4,878.03
  6. Step 6: Final answer
    x = 4,124.20

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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.