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Finding the Fourth Proportional to 3,123.70, 4,692.05 and 2,637.70

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Solution

The fourth proportional to 3,123.70, 4,692.05 and 2,637.70 is: 3,962.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.70 : 4,692.05 = 2,637.70 : x
  2. Step 2: Convert to fraction form
    3,123.70/4,692.05 = 2,637.70/x
  3. Step 3: Cross multiply
    3,123.70x = 4,692.05 × 2,637.70
  4. Step 4: Simplify right side
    3,123.70x = 12,376,220.29
  5. Step 5: Solve for x
    x = 12,376,220.29/3,123.70
  6. Step 6: Final answer
    x = 3,962.04

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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.