Home / 2,577.67-3,557.14-1,398.73

Finding the Fourth Proportional to 2,577.67, 3,557.14 and 1,398.73

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Solution

The fourth proportional to 2,577.67, 3,557.14 and 1,398.73 is: 1,930.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,577.67 : 3,557.14 = 1,398.73 : x
  2. Step 2: Convert to fraction form
    2,577.67/3,557.14 = 1,398.73/x
  3. Step 3: Cross multiply
    2,577.67x = 3,557.14 × 1,398.73
  4. Step 4: Simplify right side
    2,577.67x = 4,975,478.43
  5. Step 5: Solve for x
    x = 4,975,478.43/2,577.67
  6. Step 6: Final answer
    x = 1,930.22

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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.