Home / 4,902.20-7,345.20-4,173.20

Finding the Fourth Proportional to 4,902.20, 7,345.20 and 4,173.20

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Solution

The fourth proportional to 4,902.20, 7,345.20 and 4,173.20 is: 6,252.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,902.20 : 7,345.20 = 4,173.20 : x
  2. Step 2: Convert to fraction form
    4,902.20/7,345.20 = 4,173.20/x
  3. Step 3: Cross multiply
    4,902.20x = 7,345.20 × 4,173.20
  4. Step 4: Simplify right side
    4,902.20x = 30,652,988.64
  5. Step 5: Solve for x
    x = 30,652,988.64/4,902.20
  6. Step 6: Final answer
    x = 6,252.90

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Half scale
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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.