Home / 1,729.22-2,388.92-1,133.13

Finding the Fourth Proportional to 1,729.22, 2,388.92 and 1,133.13

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Solution

The fourth proportional to 1,729.22, 2,388.92 and 1,133.13 is: 1,565.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.22 : 2,388.92 = 1,133.13 : x
  2. Step 2: Convert to fraction form
    1,729.22/2,388.92 = 1,133.13/x
  3. Step 3: Cross multiply
    1,729.22x = 2,388.92 × 1,133.13
  4. Step 4: Simplify right side
    1,729.22x = 2,706,946.43
  5. Step 5: Solve for x
    x = 2,706,946.43/1,729.22
  6. Step 6: Final answer
    x = 1,565.42

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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.