Home / 2,126.67-3,190.28-740.11

Finding the Fourth Proportional to 2,126.67, 3,190.28 and 740.11

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Solution

The fourth proportional to 2,126.67, 3,190.28 and 740.11 is: 1,110.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.67 : 3,190.28 = 740.11 : x
  2. Step 2: Convert to fraction form
    2,126.67/3,190.28 = 740.11/x
  3. Step 3: Cross multiply
    2,126.67x = 3,190.28 × 740.11
  4. Step 4: Simplify right side
    2,126.67x = 2,361,149.23
  5. Step 5: Solve for x
    x = 2,361,149.23/2,126.67
  6. Step 6: Final answer
    x = 1,110.26

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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.