Home / 3,517.78-4,854.06-2,988.80

Finding the Fourth Proportional to 3,517.78, 4,854.06 and 2,988.80

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Solution

The fourth proportional to 3,517.78, 4,854.06 and 2,988.80 is: 4,124.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,517.78 : 4,854.06 = 2,988.80 : x
  2. Step 2: Convert to fraction form
    3,517.78/4,854.06 = 2,988.80/x
  3. Step 3: Cross multiply
    3,517.78x = 4,854.06 × 2,988.80
  4. Step 4: Simplify right side
    3,517.78x = 14,507,814.53
  5. Step 5: Solve for x
    x = 14,507,814.53/3,517.78
  6. Step 6: Final answer
    x = 4,124.14

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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.