Home / 3,358.65-5,037.98-1,278.17

Finding the Fourth Proportional to 3,358.65, 5,037.98 and 1,278.17

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Solution

The fourth proportional to 3,358.65, 5,037.98 and 1,278.17 is: 1,917.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,358.65 : 5,037.98 = 1,278.17 : x
  2. Step 2: Convert to fraction form
    3,358.65/5,037.98 = 1,278.17/x
  3. Step 3: Cross multiply
    3,358.65x = 5,037.98 × 1,278.17
  4. Step 4: Simplify right side
    3,358.65x = 6,439,394.90
  5. Step 5: Solve for x
    x = 6,439,394.90/3,358.65
  6. Step 6: Final answer
    x = 1,917.26

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Double scale
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Similar ratio
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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.