Home / 3,103.56-4,282.38-1,777.32

Finding the Fourth Proportional to 3,103.56, 4,282.38 and 1,777.32

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Solution

The fourth proportional to 3,103.56, 4,282.38 and 1,777.32 is: 2,452.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.56 : 4,282.38 = 1,777.32 : x
  2. Step 2: Convert to fraction form
    3,103.56/4,282.38 = 1,777.32/x
  3. Step 3: Cross multiply
    3,103.56x = 4,282.38 × 1,777.32
  4. Step 4: Simplify right side
    3,103.56x = 7,611,159.62
  5. Step 5: Solve for x
    x = 7,611,159.62/3,103.56
  6. Step 6: Final answer
    x = 2,452.40

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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.