Home / 7,479.20-11,225.69-3,784.02

Finding the Fourth Proportional to 7,479.20, 11,225.69 and 3,784.02

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Solution

The fourth proportional to 7,479.20, 11,225.69 and 3,784.02 is: 5,679.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.20 : 11,225.69 = 3,784.02 : x
  2. Step 2: Convert to fraction form
    7,479.20/11,225.69 = 3,784.02/x
  3. Step 3: Cross multiply
    7,479.20x = 11,225.69 × 3,784.02
  4. Step 4: Simplify right side
    7,479.20x = 42,478,188.65
  5. Step 5: Solve for x
    x = 42,478,188.65/7,479.20
  6. Step 6: Final answer
    x = 5,679.51

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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.