Home / 4,877.48-6,729.18-2,988.38

Finding the Fourth Proportional to 4,877.48, 6,729.18 and 2,988.38

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Solution

The fourth proportional to 4,877.48, 6,729.18 and 2,988.38 is: 4,122.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.48 : 6,729.18 = 2,988.38 : x
  2. Step 2: Convert to fraction form
    4,877.48/6,729.18 = 2,988.38/x
  3. Step 3: Cross multiply
    4,877.48x = 6,729.18 × 2,988.38
  4. Step 4: Simplify right side
    4,877.48x = 20,109,346.93
  5. Step 5: Solve for x
    x = 20,109,346.93/4,877.48
  6. Step 6: Final answer
    x = 4,122.90

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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.