Home / 2,353.94-3,248.38-1,291.70

Finding the Fourth Proportional to 2,353.94, 3,248.38 and 1,291.70

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Solution

The fourth proportional to 2,353.94, 3,248.38 and 1,291.70 is: 1,782.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.94 : 3,248.38 = 1,291.70 : x
  2. Step 2: Convert to fraction form
    2,353.94/3,248.38 = 1,291.70/x
  3. Step 3: Cross multiply
    2,353.94x = 3,248.38 × 1,291.70
  4. Step 4: Simplify right side
    2,353.94x = 4,195,932.45
  5. Step 5: Solve for x
    x = 4,195,932.45/2,353.94
  6. Step 6: Final answer
    x = 1,782.51

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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.