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Finding the Fourth Proportional to 2,902.99, 4,006.17 and 1,576.72

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Solution

The fourth proportional to 2,902.99, 4,006.17 and 1,576.72 is: 2,175.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,902.99 : 4,006.17 = 1,576.72 : x
  2. Step 2: Convert to fraction form
    2,902.99/4,006.17 = 1,576.72/x
  3. Step 3: Cross multiply
    2,902.99x = 4,006.17 × 1,576.72
  4. Step 4: Simplify right side
    2,902.99x = 6,316,608.36
  5. Step 5: Solve for x
    x = 6,316,608.36/2,902.99
  6. Step 6: Final answer
    x = 2,175.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.