Home / 2,215.16-3,347.84-2,176.90

Finding the Fourth Proportional to 2,215.16, 3,347.84 and 2,176.90

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Solution

The fourth proportional to 2,215.16, 3,347.84 and 2,176.90 is: 3,290.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.16 : 3,347.84 = 2,176.90 : x
  2. Step 2: Convert to fraction form
    2,215.16/3,347.84 = 2,176.90/x
  3. Step 3: Cross multiply
    2,215.16x = 3,347.84 × 2,176.90
  4. Step 4: Simplify right side
    2,215.16x = 7,287,912.90
  5. Step 5: Solve for x
    x = 7,287,912.90/2,215.16
  6. Step 6: Final answer
    x = 3,290.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.