Home / 3,102.98-4,282.45-1,777.12

Finding the Fourth Proportional to 3,102.98, 4,282.45 and 1,777.12

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Solution

The fourth proportional to 3,102.98, 4,282.45 and 1,777.12 is: 2,452.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.98 : 4,282.45 = 1,777.12 : x
  2. Step 2: Convert to fraction form
    3,102.98/4,282.45 = 1,777.12/x
  3. Step 3: Cross multiply
    3,102.98x = 4,282.45 × 1,777.12
  4. Step 4: Simplify right side
    3,102.98x = 7,610,427.54
  5. Step 5: Solve for x
    x = 7,610,427.54/3,102.98
  6. Step 6: Final answer
    x = 2,452.62

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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.