Home / 2,577.97-3,557.60-1,399.05

Finding the Fourth Proportional to 2,577.97, 3,557.60 and 1,399.05

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Solution

The fourth proportional to 2,577.97, 3,557.60 and 1,399.05 is: 1,930.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,577.97 : 3,557.60 = 1,399.05 : x
  2. Step 2: Convert to fraction form
    2,577.97/3,557.60 = 1,399.05/x
  3. Step 3: Cross multiply
    2,577.97x = 3,557.60 × 1,399.05
  4. Step 4: Simplify right side
    2,577.97x = 4,977,260.28
  5. Step 5: Solve for x
    x = 4,977,260.28/2,577.97
  6. Step 6: Final answer
    x = 1,930.69

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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.