Home / 4,990.32-7,488.39-2,771.02

Finding the Fourth Proportional to 4,990.32, 7,488.39 and 2,771.02

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Solution

The fourth proportional to 4,990.32, 7,488.39 and 2,771.02 is: 4,158.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.32 : 7,488.39 = 2,771.02 : x
  2. Step 2: Convert to fraction form
    4,990.32/7,488.39 = 2,771.02/x
  3. Step 3: Cross multiply
    4,990.32x = 7,488.39 × 2,771.02
  4. Step 4: Simplify right side
    4,990.32x = 20,750,459.74
  5. Step 5: Solve for x
    x = 20,750,459.74/4,990.32
  6. Step 6: Final answer
    x = 4,158.15

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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.