Home / 4,877.55-6,731.91-2,989.85

Finding the Fourth Proportional to 4,877.55, 6,731.91 and 2,989.85

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Solution

The fourth proportional to 4,877.55, 6,731.91 and 2,989.85 is: 4,126.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.55 : 6,731.91 = 2,989.85 : x
  2. Step 2: Convert to fraction form
    4,877.55/6,731.91 = 2,989.85/x
  3. Step 3: Cross multiply
    4,877.55x = 6,731.91 × 2,989.85
  4. Step 4: Simplify right side
    4,877.55x = 20,127,367.45
  5. Step 5: Solve for x
    x = 20,127,367.45/4,877.55
  6. Step 6: Final answer
    x = 4,126.53

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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.