Home / 3,124.29-4,311.19-1,798.19

Finding the Fourth Proportional to 3,124.29, 4,311.19 and 1,798.19

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Solution

The fourth proportional to 3,124.29, 4,311.19 and 1,798.19 is: 2,481.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.29 : 4,311.19 = 1,798.19 : x
  2. Step 2: Convert to fraction form
    3,124.29/4,311.19 = 1,798.19/x
  3. Step 3: Cross multiply
    3,124.29x = 4,311.19 × 1,798.19
  4. Step 4: Simplify right side
    3,124.29x = 7,752,338.75
  5. Step 5: Solve for x
    x = 7,752,338.75/3,124.29
  6. Step 6: Final answer
    x = 2,481.31

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Half scale
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Double scale
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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.