Home / 1,691.40-2,334.76-1,252.84

Finding the Fourth Proportional to 1,691.40, 2,334.76 and 1,252.84

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Solution

The fourth proportional to 1,691.40, 2,334.76 and 1,252.84 is: 1,729.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691.40 : 2,334.76 = 1,252.84 : x
  2. Step 2: Convert to fraction form
    1,691.40/2,334.76 = 1,252.84/x
  3. Step 3: Cross multiply
    1,691.40x = 2,334.76 × 1,252.84
  4. Step 4: Simplify right side
    1,691.40x = 2,925,080.72
  5. Step 5: Solve for x
    x = 2,925,080.72/1,691.40
  6. Step 6: Final answer
    x = 1,729.38

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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.