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Finding the Fourth Proportional to 3,114.70, 4,672.05 and 2,952.70

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Solution

The fourth proportional to 3,114.70, 4,672.05 and 2,952.70 is: 4,429.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.70 : 4,672.05 = 2,952.70 : x
  2. Step 2: Convert to fraction form
    3,114.70/4,672.05 = 2,952.70/x
  3. Step 3: Cross multiply
    3,114.70x = 4,672.05 × 2,952.70
  4. Step 4: Simplify right side
    3,114.70x = 13,795,162.04
  5. Step 5: Solve for x
    x = 13,795,162.04/3,114.70
  6. Step 6: Final answer
    x = 4,429.05

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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.