Home / 5,518.25-7,618.82-4,257.11

Finding the Fourth Proportional to 5,518.25, 7,618.82 and 4,257.11

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Solution

The fourth proportional to 5,518.25, 7,618.82 and 4,257.11 is: 5,877.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.25 : 7,618.82 = 4,257.11 : x
  2. Step 2: Convert to fraction form
    5,518.25/7,618.82 = 4,257.11/x
  3. Step 3: Cross multiply
    5,518.25x = 7,618.82 × 4,257.11
  4. Step 4: Simplify right side
    5,518.25x = 32,434,154.81
  5. Step 5: Solve for x
    x = 32,434,154.81/5,518.25
  6. Step 6: Final answer
    x = 5,877.62

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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.