Home / 2,812.18-4,218.27-963.31

Finding the Fourth Proportional to 2,812.18, 4,218.27 and 963.31

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Solution

The fourth proportional to 2,812.18, 4,218.27 and 963.31 is: 1,444.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.18 : 4,218.27 = 963.31 : x
  2. Step 2: Convert to fraction form
    2,812.18/4,218.27 = 963.31/x
  3. Step 3: Cross multiply
    2,812.18x = 4,218.27 × 963.31
  4. Step 4: Simplify right side
    2,812.18x = 4,063,500.01
  5. Step 5: Solve for x
    x = 4,063,500.01/2,812.18
  6. Step 6: Final answer
    x = 1,444.97

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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.