Home / 4,778.32-7,167.48-1,660.64

Finding the Fourth Proportional to 4,778.32, 7,167.48 and 1,660.64

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Solution

The fourth proportional to 4,778.32, 7,167.48 and 1,660.64 is: 2,490.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.32 : 7,167.48 = 1,660.64 : x
  2. Step 2: Convert to fraction form
    4,778.32/7,167.48 = 1,660.64/x
  3. Step 3: Cross multiply
    4,778.32x = 7,167.48 × 1,660.64
  4. Step 4: Simplify right side
    4,778.32x = 11,902,603.99
  5. Step 5: Solve for x
    x = 11,902,603.99/4,778.32
  6. Step 6: Final answer
    x = 2,490.96

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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.