Home / 7,127.91-10,690.84-2,447.83

Finding the Fourth Proportional to 7,127.91, 10,690.84 and 2,447.83

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Solution

The fourth proportional to 7,127.91, 10,690.84 and 2,447.83 is: 3,671.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.91 : 10,690.84 = 2,447.83 : x
  2. Step 2: Convert to fraction form
    7,127.91/10,690.84 = 2,447.83/x
  3. Step 3: Cross multiply
    7,127.91x = 10,690.84 × 2,447.83
  4. Step 4: Simplify right side
    7,127.91x = 26,169,358.88
  5. Step 5: Solve for x
    x = 26,169,358.88/7,127.91
  6. Step 6: Final answer
    x = 3,671.39

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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.