Home / 2,577.99-3,557.65-1,399.08

Finding the Fourth Proportional to 2,577.99, 3,557.65 and 1,399.08

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Solution

The fourth proportional to 2,577.99, 3,557.65 and 1,399.08 is: 1,930.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,577.99 : 3,557.65 = 1,399.08 : x
  2. Step 2: Convert to fraction form
    2,577.99/3,557.65 = 1,399.08/x
  3. Step 3: Cross multiply
    2,577.99x = 3,557.65 × 1,399.08
  4. Step 4: Simplify right side
    2,577.99x = 4,977,436.96
  5. Step 5: Solve for x
    x = 4,977,436.96/2,577.99
  6. Step 6: Final answer
    x = 1,930.74

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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.