Home / 2,912.15-4,368.11-2,520.87

Finding the Fourth Proportional to 2,912.15, 4,368.11 and 2,520.87

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Solution

The fourth proportional to 2,912.15, 4,368.11 and 2,520.87 is: 3,781.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.15 : 4,368.11 = 2,520.87 : x
  2. Step 2: Convert to fraction form
    2,912.15/4,368.11 = 2,520.87/x
  3. Step 3: Cross multiply
    2,912.15x = 4,368.11 × 2,520.87
  4. Step 4: Simplify right side
    2,912.15x = 11,011,424.85
  5. Step 5: Solve for x
    x = 11,011,424.85/2,912.15
  6. Step 6: Final answer
    x = 3,781.21

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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.