Home / 2,177.47-3,001.97-1,431.14

Finding the Fourth Proportional to 2,177.47, 3,001.97 and 1,431.14

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Solution

The fourth proportional to 2,177.47, 3,001.97 and 1,431.14 is: 1,973.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.47 : 3,001.97 = 1,431.14 : x
  2. Step 2: Convert to fraction form
    2,177.47/3,001.97 = 1,431.14/x
  3. Step 3: Cross multiply
    2,177.47x = 3,001.97 × 1,431.14
  4. Step 4: Simplify right side
    2,177.47x = 4,296,250.43
  5. Step 5: Solve for x
    x = 4,296,250.43/2,177.47
  6. Step 6: Final answer
    x = 1,973.05

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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.