Home / 2,351.78-3,246.18-1,357.70

Finding the Fourth Proportional to 2,351.78, 3,246.18 and 1,357.70

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Solution

The fourth proportional to 2,351.78, 3,246.18 and 1,357.70 is: 1,874.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.78 : 3,246.18 = 1,357.70 : x
  2. Step 2: Convert to fraction form
    2,351.78/3,246.18 = 1,357.70/x
  3. Step 3: Cross multiply
    2,351.78x = 3,246.18 × 1,357.70
  4. Step 4: Simplify right side
    2,351.78x = 4,407,338.59
  5. Step 5: Solve for x
    x = 4,407,338.59/2,351.78
  6. Step 6: Final answer
    x = 1,874.04

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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.