Home / 4,121.78-5,686.70-2,353.04

Finding the Fourth Proportional to 4,121.78, 5,686.70 and 2,353.04

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Solution

The fourth proportional to 4,121.78, 5,686.70 and 2,353.04 is: 3,246.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.78 : 5,686.70 = 2,353.04 : x
  2. Step 2: Convert to fraction form
    4,121.78/5,686.70 = 2,353.04/x
  3. Step 3: Cross multiply
    4,121.78x = 5,686.70 × 2,353.04
  4. Step 4: Simplify right side
    4,121.78x = 13,381,032.57
  5. Step 5: Solve for x
    x = 13,381,032.57/4,121.78
  6. Step 6: Final answer
    x = 3,246.42

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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.