Home / 3,314.88-4,574.92-1,988.72

Finding the Fourth Proportional to 3,314.88, 4,574.92 and 1,988.72

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Solution

The fourth proportional to 3,314.88, 4,574.92 and 1,988.72 is: 2,744.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,314.88 : 4,574.92 = 1,988.72 : x
  2. Step 2: Convert to fraction form
    3,314.88/4,574.92 = 1,988.72/x
  3. Step 3: Cross multiply
    3,314.88x = 4,574.92 × 1,988.72
  4. Step 4: Simplify right side
    3,314.88x = 9,098,234.90
  5. Step 5: Solve for x
    x = 9,098,234.90/3,314.88
  6. Step 6: Final answer
    x = 2,744.66

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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.