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Finding the Fourth Proportional to 1,576.68, 2,353.01 and 1,513.09

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Solution

The fourth proportional to 1,576.68, 2,353.01 and 1,513.09 is: 2,258.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.68 : 2,353.01 = 1,513.09 : x
  2. Step 2: Convert to fraction form
    1,576.68/2,353.01 = 1,513.09/x
  3. Step 3: Cross multiply
    1,576.68x = 2,353.01 × 1,513.09
  4. Step 4: Simplify right side
    1,576.68x = 3,560,315.90
  5. Step 5: Solve for x
    x = 3,560,315.90/1,576.68
  6. Step 6: Final answer
    x = 2,258.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.