Home / 4,439.21-6,659.62-2,219.20

Finding the Fourth Proportional to 4,439.21, 6,659.62 and 2,219.20

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Solution

The fourth proportional to 4,439.21, 6,659.62 and 2,219.20 is: 3,329.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,439.21 : 6,659.62 = 2,219.20 : x
  2. Step 2: Convert to fraction form
    4,439.21/6,659.62 = 2,219.20/x
  3. Step 3: Cross multiply
    4,439.21x = 6,659.62 × 2,219.20
  4. Step 4: Simplify right side
    4,439.21x = 14,779,006.51
  5. Step 5: Solve for x
    x = 14,779,006.51/4,439.21
  6. Step 6: Final answer
    x = 3,329.20

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Half scale
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Double scale
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Similar ratio
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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.