Home / 3,943.47-5,915.00-1,170.16

Finding the Fourth Proportional to 3,943.47, 5,915.00 and 1,170.16

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Solution

The fourth proportional to 3,943.47, 5,915.00 and 1,170.16 is: 1,755.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.47 : 5,915.00 = 1,170.16 : x
  2. Step 2: Convert to fraction form
    3,943.47/5,915.00 = 1,170.16/x
  3. Step 3: Cross multiply
    3,943.47x = 5,915.00 × 1,170.16
  4. Step 4: Simplify right side
    3,943.47x = 6,921,490.55
  5. Step 5: Solve for x
    x = 6,921,490.55/3,943.47
  6. Step 6: Final answer
    x = 1,755.18

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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.