Home / 2,618.60-3,609.93-1,872.29

Finding the Fourth Proportional to 2,618.60, 3,609.93 and 1,872.29

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Solution

The fourth proportional to 2,618.60, 3,609.93 and 1,872.29 is: 2,581.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.60 : 3,609.93 = 1,872.29 : x
  2. Step 2: Convert to fraction form
    2,618.60/3,609.93 = 1,872.29/x
  3. Step 3: Cross multiply
    2,618.60x = 3,609.93 × 1,872.29
  4. Step 4: Simplify right side
    2,618.60x = 6,758,835.84
  5. Step 5: Solve for x
    x = 6,758,835.84/2,618.60
  6. Step 6: Final answer
    x = 2,581.09

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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.