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Finding the Fourth Proportional to 2,618.92, 3,919.74 and 2,330.92

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Solution

The fourth proportional to 2,618.92, 3,919.74 and 2,330.92 is: 3,488.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.92 : 3,919.74 = 2,330.92 : x
  2. Step 2: Convert to fraction form
    2,618.92/3,919.74 = 2,330.92/x
  3. Step 3: Cross multiply
    2,618.92x = 3,919.74 × 2,330.92
  4. Step 4: Simplify right side
    2,618.92x = 9,136,600.36
  5. Step 5: Solve for x
    x = 9,136,600.36/2,618.92
  6. Step 6: Final answer
    x = 3,488.69

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1.5x scale

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.