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Finding the Fourth Proportional to 3,387.42, 4,670.46 and 2,677.86

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Solution

The fourth proportional to 3,387.42, 4,670.46 and 2,677.86 is: 3,692.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.42 : 4,670.46 = 2,677.86 : x
  2. Step 2: Convert to fraction form
    3,387.42/4,670.46 = 2,677.86/x
  3. Step 3: Cross multiply
    3,387.42x = 4,670.46 × 2,677.86
  4. Step 4: Simplify right side
    3,387.42x = 12,506,838.02
  5. Step 5: Solve for x
    x = 12,506,838.02/3,387.42
  6. Step 6: Final answer
    x = 3,692.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.