Home / 3,170.65-4,370.84-2,223.57

Finding the Fourth Proportional to 3,170.65, 4,370.84 and 2,223.57

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Solution

The fourth proportional to 3,170.65, 4,370.84 and 2,223.57 is: 3,065.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.65 : 4,370.84 = 2,223.57 : x
  2. Step 2: Convert to fraction form
    3,170.65/4,370.84 = 2,223.57/x
  3. Step 3: Cross multiply
    3,170.65x = 4,370.84 × 2,223.57
  4. Step 4: Simplify right side
    3,170.65x = 9,718,868.70
  5. Step 5: Solve for x
    x = 9,718,868.70/3,170.65
  6. Step 6: Final answer
    x = 3,065.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.