Home / 4,991.04-7,479.81-2,909.88

Finding the Fourth Proportional to 4,991.04, 7,479.81 and 2,909.88

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Solution

The fourth proportional to 4,991.04, 7,479.81 and 2,909.88 is: 4,360.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.04 : 7,479.81 = 2,909.88 : x
  2. Step 2: Convert to fraction form
    4,991.04/7,479.81 = 2,909.88/x
  3. Step 3: Cross multiply
    4,991.04x = 7,479.81 × 2,909.88
  4. Step 4: Simplify right side
    4,991.04x = 21,765,349.52
  5. Step 5: Solve for x
    x = 21,765,349.52/4,991.04
  6. Step 6: Final answer
    x = 4,360.88

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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.