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Finding the Fourth Proportional to 5,943.80, 8,915.70 and 3,745.40

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Solution

The fourth proportional to 5,943.80, 8,915.70 and 3,745.40 is: 5,618.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,943.80 : 8,915.70 = 3,745.40 : x
  2. Step 2: Convert to fraction form
    5,943.80/8,915.70 = 3,745.40/x
  3. Step 3: Cross multiply
    5,943.80x = 8,915.70 × 3,745.40
  4. Step 4: Simplify right side
    5,943.80x = 33,392,862.78
  5. Step 5: Solve for x
    x = 33,392,862.78/5,943.80
  6. Step 6: Final answer
    x = 5,618.10

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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.