Home / 2,353.71-3,248.20-1,291.56

Finding the Fourth Proportional to 2,353.71, 3,248.20 and 1,291.56

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Solution

The fourth proportional to 2,353.71, 3,248.20 and 1,291.56 is: 1,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.71 : 3,248.20 = 1,291.56 : x
  2. Step 2: Convert to fraction form
    2,353.71/3,248.20 = 1,291.56/x
  3. Step 3: Cross multiply
    2,353.71x = 3,248.20 × 1,291.56
  4. Step 4: Simplify right side
    2,353.71x = 4,195,245.19
  5. Step 5: Solve for x
    x = 4,195,245.19/2,353.71
  6. Step 6: Final answer
    x = 1,782.40

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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.