Home / 2,919.54-4,026.68-1,871.70

Finding the Fourth Proportional to 2,919.54, 4,026.68 and 1,871.70

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Solution

The fourth proportional to 2,919.54, 4,026.68 and 1,871.70 is: 2,581.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.54 : 4,026.68 = 1,871.70 : x
  2. Step 2: Convert to fraction form
    2,919.54/4,026.68 = 1,871.70/x
  3. Step 3: Cross multiply
    2,919.54x = 4,026.68 × 1,871.70
  4. Step 4: Simplify right side
    2,919.54x = 7,536,736.96
  5. Step 5: Solve for x
    x = 7,536,736.96/2,919.54
  6. Step 6: Final answer
    x = 2,581.48

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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.