Home / 2,147.16-2,961.18-1,449.48

Finding the Fourth Proportional to 2,147.16, 2,961.18 and 1,449.48

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Solution

The fourth proportional to 2,147.16, 2,961.18 and 1,449.48 is: 1,999.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.16 : 2,961.18 = 1,449.48 : x
  2. Step 2: Convert to fraction form
    2,147.16/2,961.18 = 1,449.48/x
  3. Step 3: Cross multiply
    2,147.16x = 2,961.18 × 1,449.48
  4. Step 4: Simplify right side
    2,147.16x = 4,292,171.19
  5. Step 5: Solve for x
    x = 4,292,171.19/2,147.16
  6. Step 6: Final answer
    x = 1,999.00

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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.