Home / 2,577.80-3,868.18-1,540.32

Finding the Fourth Proportional to 2,577.80, 3,868.18 and 1,540.32

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Solution

The fourth proportional to 2,577.80, 3,868.18 and 1,540.32 is: 2,311.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,577.80 : 3,868.18 = 1,540.32 : x
  2. Step 2: Convert to fraction form
    2,577.80/3,868.18 = 1,540.32/x
  3. Step 3: Cross multiply
    2,577.80x = 3,868.18 × 1,540.32
  4. Step 4: Simplify right side
    2,577.80x = 5,958,235.02
  5. Step 5: Solve for x
    x = 5,958,235.02/2,577.80
  6. Step 6: Final answer
    x = 2,311.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.