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Finding the Fourth Proportional to 3,431, 5,146.50 and 1,576.52

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Solution

The fourth proportional to 3,431, 5,146.50 and 1,576.52 is: 2,364.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431 : 5,146.50 = 1,576.52 : x
  2. Step 2: Convert to fraction form
    3,431/5,146.50 = 1,576.52/x
  3. Step 3: Cross multiply
    3,431x = 5,146.50 × 1,576.52
  4. Step 4: Simplify right side
    3,431x = 8,113,560.18
  5. Step 5: Solve for x
    x = 8,113,560.18/3,431
  6. Step 6: Final answer
    x = 2,364.78

Related Problems

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Double scale
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Similar ratio
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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.