Home / 3,475.54-5,215.16-2,091.66

Finding the Fourth Proportional to 3,475.54, 5,215.16 and 2,091.66

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Solution

The fourth proportional to 3,475.54, 5,215.16 and 2,091.66 is: 3,138.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,475.54 : 5,215.16 = 2,091.66 : x
  2. Step 2: Convert to fraction form
    3,475.54/5,215.16 = 2,091.66/x
  3. Step 3: Cross multiply
    3,475.54x = 5,215.16 × 2,091.66
  4. Step 4: Simplify right side
    3,475.54x = 10,908,341.57
  5. Step 5: Solve for x
    x = 10,908,341.57/3,475.54
  6. Step 6: Final answer
    x = 3,138.60

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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.