Home / 2,478.73-3,427.23-2,167.51

Finding the Fourth Proportional to 2,478.73, 3,427.23 and 2,167.51

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Solution

The fourth proportional to 2,478.73, 3,427.23 and 2,167.51 is: 2,996.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.73 : 3,427.23 = 2,167.51 : x
  2. Step 2: Convert to fraction form
    2,478.73/3,427.23 = 2,167.51/x
  3. Step 3: Cross multiply
    2,478.73x = 3,427.23 × 2,167.51
  4. Step 4: Simplify right side
    2,478.73x = 7,428,555.30
  5. Step 5: Solve for x
    x = 7,428,555.30/2,478.73
  6. Step 6: Final answer
    x = 2,996.92

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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.