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Finding the Fourth Proportional to 2,988.88, 4,125.48 and 1,747.12

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Solution

The fourth proportional to 2,988.88, 4,125.48 and 1,747.12 is: 2,411.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.88 : 4,125.48 = 1,747.12 : x
  2. Step 2: Convert to fraction form
    2,988.88/4,125.48 = 1,747.12/x
  3. Step 3: Cross multiply
    2,988.88x = 4,125.48 × 1,747.12
  4. Step 4: Simplify right side
    2,988.88x = 7,207,708.62
  5. Step 5: Solve for x
    x = 7,207,708.62/2,988.88
  6. Step 6: Final answer
    x = 2,411.51

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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.