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Finding the Fourth Proportional to 1,903.92, 2,626.32 and 1,195.92

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Solution

The fourth proportional to 1,903.92, 2,626.32 and 1,195.92 is: 1,649.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.92 : 2,626.32 = 1,195.92 : x
  2. Step 2: Convert to fraction form
    1,903.92/2,626.32 = 1,195.92/x
  3. Step 3: Cross multiply
    1,903.92x = 2,626.32 × 1,195.92
  4. Step 4: Simplify right side
    1,903.92x = 3,140,868.61
  5. Step 5: Solve for x
    x = 3,140,868.61/1,903.92
  6. Step 6: Final answer
    x = 1,649.69

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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.