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Finding the Fourth Proportional to 3,119.70, 4,686.05 and 2,633.70

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Solution

The fourth proportional to 3,119.70, 4,686.05 and 2,633.70 is: 3,956.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.70 : 4,686.05 = 2,633.70 : x
  2. Step 2: Convert to fraction form
    3,119.70/4,686.05 = 2,633.70/x
  3. Step 3: Cross multiply
    3,119.70x = 4,686.05 × 2,633.70
  4. Step 4: Simplify right side
    3,119.70x = 12,341,649.89
  5. Step 5: Solve for x
    x = 12,341,649.89/3,119.70
  6. Step 6: Final answer
    x = 3,956.04

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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.