Home / 7,877.43-10,871.31-4,520.22

Finding the Fourth Proportional to 7,877.43, 10,871.31 and 4,520.22

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Solution

The fourth proportional to 7,877.43, 10,871.31 and 4,520.22 is: 6,238.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.43 : 10,871.31 = 4,520.22 : x
  2. Step 2: Convert to fraction form
    7,877.43/10,871.31 = 4,520.22/x
  3. Step 3: Cross multiply
    7,877.43x = 10,871.31 × 4,520.22
  4. Step 4: Simplify right side
    7,877.43x = 49,140,712.89
  5. Step 5: Solve for x
    x = 49,140,712.89/7,877.43
  6. Step 6: Final answer
    x = 6,238.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.