Home / 4,188.78-5,778.18-2,673.48

Finding the Fourth Proportional to 4,188.78, 5,778.18 and 2,673.48

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Solution

The fourth proportional to 4,188.78, 5,778.18 and 2,673.48 is: 3,687.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.78 : 5,778.18 = 2,673.48 : x
  2. Step 2: Convert to fraction form
    4,188.78/5,778.18 = 2,673.48/x
  3. Step 3: Cross multiply
    4,188.78x = 5,778.18 × 2,673.48
  4. Step 4: Simplify right side
    4,188.78x = 15,447,848.67
  5. Step 5: Solve for x
    x = 15,447,848.67/4,188.78
  6. Step 6: Final answer
    x = 3,687.91

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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.