Home / 2,211.42-3,317.28-750.48

Finding the Fourth Proportional to 2,211.42, 3,317.28 and 750.48

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Solution

The fourth proportional to 2,211.42, 3,317.28 and 750.48 is: 1,125.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.42 : 3,317.28 = 750.48 : x
  2. Step 2: Convert to fraction form
    2,211.42/3,317.28 = 750.48/x
  3. Step 3: Cross multiply
    2,211.42x = 3,317.28 × 750.48
  4. Step 4: Simplify right side
    2,211.42x = 2,489,552.29
  5. Step 5: Solve for x
    x = 2,489,552.29/2,211.42
  6. Step 6: Final answer
    x = 1,125.77

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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.