Home / 4,521.91-6,778.36-2,181.25

Finding the Fourth Proportional to 4,521.91, 6,778.36 and 2,181.25

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Solution

The fourth proportional to 4,521.91, 6,778.36 and 2,181.25 is: 3,269.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,521.91 : 6,778.36 = 2,181.25 : x
  2. Step 2: Convert to fraction form
    4,521.91/6,778.36 = 2,181.25/x
  3. Step 3: Cross multiply
    4,521.91x = 6,778.36 × 2,181.25
  4. Step 4: Simplify right side
    4,521.91x = 14,785,297.75
  5. Step 5: Solve for x
    x = 14,785,297.75/4,521.91
  6. Step 6: Final answer
    x = 3,269.70

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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.