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Finding the Fourth Proportional to 1,217.92, 1,835.29 and 1,006.24

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Solution

The fourth proportional to 1,217.92, 1,835.29 and 1,006.24 is: 1,516.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217.92 : 1,835.29 = 1,006.24 : x
  2. Step 2: Convert to fraction form
    1,217.92/1,835.29 = 1,006.24/x
  3. Step 3: Cross multiply
    1,217.92x = 1,835.29 × 1,006.24
  4. Step 4: Simplify right side
    1,217.92x = 1,846,742.21
  5. Step 5: Solve for x
    x = 1,846,742.21/1,217.92
  6. Step 6: Final answer
    x = 1,516.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.