Home / 3,875.86-5,339.64-2,694.88

Finding the Fourth Proportional to 3,875.86, 5,339.64 and 2,694.88

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Solution

The fourth proportional to 3,875.86, 5,339.64 and 2,694.88 is: 3,712.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.86 : 5,339.64 = 2,694.88 : x
  2. Step 2: Convert to fraction form
    3,875.86/5,339.64 = 2,694.88/x
  3. Step 3: Cross multiply
    3,875.86x = 5,339.64 × 2,694.88
  4. Step 4: Simplify right side
    3,875.86x = 14,389,685.80
  5. Step 5: Solve for x
    x = 14,389,685.80/3,875.86
  6. Step 6: Final answer
    x = 3,712.65

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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.