Home / 2,577.85-3,865.02-1,190.42

Finding the Fourth Proportional to 2,577.85, 3,865.02 and 1,190.42

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Solution

The fourth proportional to 2,577.85, 3,865.02 and 1,190.42 is: 1,784.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,577.85 : 3,865.02 = 1,190.42 : x
  2. Step 2: Convert to fraction form
    2,577.85/3,865.02 = 1,190.42/x
  3. Step 3: Cross multiply
    2,577.85x = 3,865.02 × 1,190.42
  4. Step 4: Simplify right side
    2,577.85x = 4,600,997.11
  5. Step 5: Solve for x
    x = 4,600,997.11/2,577.85
  6. Step 6: Final answer
    x = 1,784.82

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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.