Home / 2,433.78-3,358.13-1,439.19

Finding the Fourth Proportional to 2,433.78, 3,358.13 and 1,439.19

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Solution

The fourth proportional to 2,433.78, 3,358.13 and 1,439.19 is: 1,985.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,433.78 : 3,358.13 = 1,439.19 : x
  2. Step 2: Convert to fraction form
    2,433.78/3,358.13 = 1,439.19/x
  3. Step 3: Cross multiply
    2,433.78x = 3,358.13 × 1,439.19
  4. Step 4: Simplify right side
    2,433.78x = 4,832,979.92
  5. Step 5: Solve for x
    x = 4,832,979.92/2,433.78
  6. Step 6: Final answer
    x = 1,985.79

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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.