Home / 2,177.23-3,003.84-1,431.13

Finding the Fourth Proportional to 2,177.23, 3,003.84 and 1,431.13

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Solution

The fourth proportional to 2,177.23, 3,003.84 and 1,431.13 is: 1,974.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.23 : 3,003.84 = 1,431.13 : x
  2. Step 2: Convert to fraction form
    2,177.23/3,003.84 = 1,431.13/x
  3. Step 3: Cross multiply
    2,177.23x = 3,003.84 × 1,431.13
  4. Step 4: Simplify right side
    2,177.23x = 4,298,885.54
  5. Step 5: Solve for x
    x = 4,298,885.54/2,177.23
  6. Step 6: Final answer
    x = 1,974.47

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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.