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Finding the Fourth Proportional to 5,335.88, 7,989.80 and 3,767.40

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Solution

The fourth proportional to 5,335.88, 7,989.80 and 3,767.40 is: 5,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,335.88 : 7,989.80 = 3,767.40 : x
  2. Step 2: Convert to fraction form
    5,335.88/7,989.80 = 3,767.40/x
  3. Step 3: Cross multiply
    5,335.88x = 7,989.80 × 3,767.40
  4. Step 4: Simplify right side
    5,335.88x = 30,100,772.52
  5. Step 5: Solve for x
    x = 30,100,772.52/5,335.88
  6. Step 6: Final answer
    x = 5,641.20

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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.