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Finding the Fourth Proportional to 3,050.76, 4,576.10 and 742.28

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Solution

The fourth proportional to 3,050.76, 4,576.10 and 742.28 is: 1,113.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,050.76 : 4,576.10 = 742.28 : x
  2. Step 2: Convert to fraction form
    3,050.76/4,576.10 = 742.28/x
  3. Step 3: Cross multiply
    3,050.76x = 4,576.10 × 742.28
  4. Step 4: Simplify right side
    3,050.76x = 3,396,747.51
  5. Step 5: Solve for x
    x = 3,396,747.51/3,050.76
  6. Step 6: Final answer
    x = 1,113.41

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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.