Home / 3,429.66-5,143.42-1,238.10

Finding the Fourth Proportional to 3,429.66, 5,143.42 and 1,238.10

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Solution

The fourth proportional to 3,429.66, 5,143.42 and 1,238.10 is: 1,856.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.66 : 5,143.42 = 1,238.10 : x
  2. Step 2: Convert to fraction form
    3,429.66/5,143.42 = 1,238.10/x
  3. Step 3: Cross multiply
    3,429.66x = 5,143.42 × 1,238.10
  4. Step 4: Simplify right side
    3,429.66x = 6,368,068.30
  5. Step 5: Solve for x
    x = 6,368,068.30/3,429.66
  6. Step 6: Final answer
    x = 1,856.76

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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.