Home / 2,113.32-3,170.16-726.29

Finding the Fourth Proportional to 2,113.32, 3,170.16 and 726.29

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Solution

The fourth proportional to 2,113.32, 3,170.16 and 726.29 is: 1,089.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.32 : 3,170.16 = 726.29 : x
  2. Step 2: Convert to fraction form
    2,113.32/3,170.16 = 726.29/x
  3. Step 3: Cross multiply
    2,113.32x = 3,170.16 × 726.29
  4. Step 4: Simplify right side
    2,113.32x = 2,302,439.66
  5. Step 5: Solve for x
    x = 2,302,439.66/2,113.32
  6. Step 6: Final answer
    x = 1,089.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.