Home / 3,124.32-4,311.62-1,798.28

Finding the Fourth Proportional to 3,124.32, 4,311.62 and 1,798.28

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Solution

The fourth proportional to 3,124.32, 4,311.62 and 1,798.28 is: 2,481.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.32 : 4,311.62 = 1,798.28 : x
  2. Step 2: Convert to fraction form
    3,124.32/4,311.62 = 1,798.28/x
  3. Step 3: Cross multiply
    3,124.32x = 4,311.62 × 1,798.28
  4. Step 4: Simplify right side
    3,124.32x = 7,753,500.01
  5. Step 5: Solve for x
    x = 7,753,500.01/3,124.32
  6. Step 6: Final answer
    x = 2,481.66

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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.