Home / 2,210.57-3,315.93-749.73

Finding the Fourth Proportional to 2,210.57, 3,315.93 and 749.73

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Solution

The fourth proportional to 2,210.57, 3,315.93 and 749.73 is: 1,124.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.57 : 3,315.93 = 749.73 : x
  2. Step 2: Convert to fraction form
    2,210.57/3,315.93 = 749.73/x
  3. Step 3: Cross multiply
    2,210.57x = 3,315.93 × 749.73
  4. Step 4: Simplify right side
    2,210.57x = 2,486,052.20
  5. Step 5: Solve for x
    x = 2,486,052.20/2,210.57
  6. Step 6: Final answer
    x = 1,124.62

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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.