Home / 5,251.15-7,869.30-2,912.19

Finding the Fourth Proportional to 5,251.15, 7,869.30 and 2,912.19

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Solution

The fourth proportional to 5,251.15, 7,869.30 and 2,912.19 is: 4,364.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.15 : 7,869.30 = 2,912.19 : x
  2. Step 2: Convert to fraction form
    5,251.15/7,869.30 = 2,912.19/x
  3. Step 3: Cross multiply
    5,251.15x = 7,869.30 × 2,912.19
  4. Step 4: Simplify right side
    5,251.15x = 22,916,896.77
  5. Step 5: Solve for x
    x = 22,916,896.77/5,251.15
  6. Step 6: Final answer
    x = 4,364.17

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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.