Home / 3,050.80-4,576.20-742.30

Finding the Fourth Proportional to 3,050.80, 4,576.20 and 742.30

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Solution

The fourth proportional to 3,050.80, 4,576.20 and 742.30 is: 1,113.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,050.80 : 4,576.20 = 742.30 : x
  2. Step 2: Convert to fraction form
    3,050.80/4,576.20 = 742.30/x
  3. Step 3: Cross multiply
    3,050.80x = 4,576.20 × 742.30
  4. Step 4: Simplify right side
    3,050.80x = 3,396,913.26
  5. Step 5: Solve for x
    x = 3,396,913.26/3,050.80
  6. Step 6: Final answer
    x = 1,113.45

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Similar ratio
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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.