Home / 4,416.20-6,624.24-1,129.28

Finding the Fourth Proportional to 4,416.20, 6,624.24 and 1,129.28

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Solution

The fourth proportional to 4,416.20, 6,624.24 and 1,129.28 is: 1,693.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,416.20 : 6,624.24 = 1,129.28 : x
  2. Step 2: Convert to fraction form
    4,416.20/6,624.24 = 1,129.28/x
  3. Step 3: Cross multiply
    4,416.20x = 6,624.24 × 1,129.28
  4. Step 4: Simplify right side
    4,416.20x = 7,480,621.75
  5. Step 5: Solve for x
    x = 7,480,621.75/4,416.20
  6. Step 6: Final answer
    x = 1,693.90

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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.