Home / 4,778.89-7,154.40-3,551.74

Finding the Fourth Proportional to 4,778.89, 7,154.40 and 3,551.74

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Solution

The fourth proportional to 4,778.89, 7,154.40 and 3,551.74 is: 5,317.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.89 : 7,154.40 = 3,551.74 : x
  2. Step 2: Convert to fraction form
    4,778.89/7,154.40 = 3,551.74/x
  3. Step 3: Cross multiply
    4,778.89x = 7,154.40 × 3,551.74
  4. Step 4: Simplify right side
    4,778.89x = 25,410,568.66
  5. Step 5: Solve for x
    x = 25,410,568.66/4,778.89
  6. Step 6: Final answer
    x = 5,317.25

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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.