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Finding the Fourth Proportional to 3,506.42, 5,257.78 and 1,040.88

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Solution

The fourth proportional to 3,506.42, 5,257.78 and 1,040.88 is: 1,560.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,506.42 : 5,257.78 = 1,040.88 : x
  2. Step 2: Convert to fraction form
    3,506.42/5,257.78 = 1,040.88/x
  3. Step 3: Cross multiply
    3,506.42x = 5,257.78 × 1,040.88
  4. Step 4: Simplify right side
    3,506.42x = 5,472,735.16
  5. Step 5: Solve for x
    x = 5,472,735.16/3,506.42
  6. Step 6: Final answer
    x = 1,560.77

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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.