Home / 2,210.22-3,315.24-749.34

Finding the Fourth Proportional to 2,210.22, 3,315.24 and 749.34

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Solution

The fourth proportional to 2,210.22, 3,315.24 and 749.34 is: 1,123.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.22 : 3,315.24 = 749.34 : x
  2. Step 2: Convert to fraction form
    2,210.22/3,315.24 = 749.34/x
  3. Step 3: Cross multiply
    2,210.22x = 3,315.24 × 749.34
  4. Step 4: Simplify right side
    2,210.22x = 2,484,241.94
  5. Step 5: Solve for x
    x = 2,484,241.94/2,210.22
  6. Step 6: Final answer
    x = 1,123.98

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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.