Home / 3,127.92-4,690.32-1,829.76

Finding the Fourth Proportional to 3,127.92, 4,690.32 and 1,829.76

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Solution

The fourth proportional to 3,127.92, 4,690.32 and 1,829.76 is: 2,743.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.92 : 4,690.32 = 1,829.76 : x
  2. Step 2: Convert to fraction form
    3,127.92/4,690.32 = 1,829.76/x
  3. Step 3: Cross multiply
    3,127.92x = 4,690.32 × 1,829.76
  4. Step 4: Simplify right side
    3,127.92x = 8,582,159.92
  5. Step 5: Solve for x
    x = 8,582,159.92/3,127.92
  6. Step 6: Final answer
    x = 2,743.73

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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.