Home / 4,179.17-6,268.80-1,988.12

Finding the Fourth Proportional to 4,179.17, 6,268.80 and 1,988.12

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Solution

The fourth proportional to 4,179.17, 6,268.80 and 1,988.12 is: 2,982.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,179.17 : 6,268.80 = 1,988.12 : x
  2. Step 2: Convert to fraction form
    4,179.17/6,268.80 = 1,988.12/x
  3. Step 3: Cross multiply
    4,179.17x = 6,268.80 × 1,988.12
  4. Step 4: Simplify right side
    4,179.17x = 12,463,126.66
  5. Step 5: Solve for x
    x = 12,463,126.66/4,179.17
  6. Step 6: Final answer
    x = 2,982.20

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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.