Home / 2,210.14-3,315.75-749.31

Finding the Fourth Proportional to 2,210.14, 3,315.75 and 749.31

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Solution

The fourth proportional to 2,210.14, 3,315.75 and 749.31 is: 1,124.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.14 : 3,315.75 = 749.31 : x
  2. Step 2: Convert to fraction form
    2,210.14/3,315.75 = 749.31/x
  3. Step 3: Cross multiply
    2,210.14x = 3,315.75 × 749.31
  4. Step 4: Simplify right side
    2,210.14x = 2,484,508.05
  5. Step 5: Solve for x
    x = 2,484,508.05/2,210.14
  6. Step 6: Final answer
    x = 1,124.14

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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.