Home / 3,240.45-4,871.51-2,659.76

Finding the Fourth Proportional to 3,240.45, 4,871.51 and 2,659.76

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Solution

The fourth proportional to 3,240.45, 4,871.51 and 2,659.76 is: 3,998.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.45 : 4,871.51 = 2,659.76 : x
  2. Step 2: Convert to fraction form
    3,240.45/4,871.51 = 2,659.76/x
  3. Step 3: Cross multiply
    3,240.45x = 4,871.51 × 2,659.76
  4. Step 4: Simplify right side
    3,240.45x = 12,957,009.78
  5. Step 5: Solve for x
    x = 12,957,009.78/3,240.45
  6. Step 6: Final answer
    x = 3,998.52

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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.