Home / 3,871.96-5,344.14-2,545.79

Finding the Fourth Proportional to 3,871.96, 5,344.14 and 2,545.79

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Solution

The fourth proportional to 3,871.96, 5,344.14 and 2,545.79 is: 3,513.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.96 : 5,344.14 = 2,545.79 : x
  2. Step 2: Convert to fraction form
    3,871.96/5,344.14 = 2,545.79/x
  3. Step 3: Cross multiply
    3,871.96x = 5,344.14 × 2,545.79
  4. Step 4: Simplify right side
    3,871.96x = 13,605,041.00
  5. Step 5: Solve for x
    x = 13,605,041.00/3,871.96
  6. Step 6: Final answer
    x = 3,513.74

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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.