Home / 2,210.09-3,315.05-749.25

Finding the Fourth Proportional to 2,210.09, 3,315.05 and 749.25

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Solution

The fourth proportional to 2,210.09, 3,315.05 and 749.25 is: 1,123.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.09 : 3,315.05 = 749.25 : x
  2. Step 2: Convert to fraction form
    2,210.09/3,315.05 = 749.25/x
  3. Step 3: Cross multiply
    2,210.09x = 3,315.05 × 749.25
  4. Step 4: Simplify right side
    2,210.09x = 2,483,790.65
  5. Step 5: Solve for x
    x = 2,483,790.65/2,210.09
  6. Step 6: Final answer
    x = 1,123.84

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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.