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Finding the Fourth Proportional to 5,931.20, 8,894.10 and 2,642.60

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Solution

The fourth proportional to 5,931.20, 8,894.10 and 2,642.60 is: 3,962.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,931.20 : 8,894.10 = 2,642.60 : x
  2. Step 2: Convert to fraction form
    5,931.20/8,894.10 = 2,642.60/x
  3. Step 3: Cross multiply
    5,931.20x = 8,894.10 × 2,642.60
  4. Step 4: Simplify right side
    5,931.20x = 23,503,548.66
  5. Step 5: Solve for x
    x = 23,503,548.66/5,931.20
  6. Step 6: Final answer
    x = 3,962.70

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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.