Home / 1,353.46-1,867.97-1,270.07

Finding the Fourth Proportional to 1,353.46, 1,867.97 and 1,270.07

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Solution

The fourth proportional to 1,353.46, 1,867.97 and 1,270.07 is: 1,752.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.46 : 1,867.97 = 1,270.07 : x
  2. Step 2: Convert to fraction form
    1,353.46/1,867.97 = 1,270.07/x
  3. Step 3: Cross multiply
    1,353.46x = 1,867.97 × 1,270.07
  4. Step 4: Simplify right side
    1,353.46x = 2,372,452.66
  5. Step 5: Solve for x
    x = 2,372,452.66/1,353.46
  6. Step 6: Final answer
    x = 1,752.88

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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.