Home / 2,618.92-3,925.56-1,231.08

Finding the Fourth Proportional to 2,618.92, 3,925.56 and 1,231.08

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Solution

The fourth proportional to 2,618.92, 3,925.56 and 1,231.08 is: 1,845.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.92 : 3,925.56 = 1,231.08 : x
  2. Step 2: Convert to fraction form
    2,618.92/3,925.56 = 1,231.08/x
  3. Step 3: Cross multiply
    2,618.92x = 3,925.56 × 1,231.08
  4. Step 4: Simplify right side
    2,618.92x = 4,832,678.40
  5. Step 5: Solve for x
    x = 4,832,678.40/2,618.92
  6. Step 6: Final answer
    x = 1,845.29

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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.