Home / 3,142.56-4,690.80-2,773.56

Finding the Fourth Proportional to 3,142.56, 4,690.80 and 2,773.56

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Solution

The fourth proportional to 3,142.56, 4,690.80 and 2,773.56 is: 4,140.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.56 : 4,690.80 = 2,773.56 : x
  2. Step 2: Convert to fraction form
    3,142.56/4,690.80 = 2,773.56/x
  3. Step 3: Cross multiply
    3,142.56x = 4,690.80 × 2,773.56
  4. Step 4: Simplify right side
    3,142.56x = 13,010,215.25
  5. Step 5: Solve for x
    x = 13,010,215.25/3,142.56
  6. Step 6: Final answer
    x = 4,140.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.