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Finding the Fourth Proportional to 3,445.03, 5,167.55 and 847.97

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Solution

The fourth proportional to 3,445.03, 5,167.55 and 847.97 is: 1,271.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,445.03 : 5,167.55 = 847.97 : x
  2. Step 2: Convert to fraction form
    3,445.03/5,167.55 = 847.97/x
  3. Step 3: Cross multiply
    3,445.03x = 5,167.55 × 847.97
  4. Step 4: Simplify right side
    3,445.03x = 4,381,918.26
  5. Step 5: Solve for x
    x = 4,381,918.26/3,445.03
  6. Step 6: Final answer
    x = 1,271.95

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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.