Home / 4,242.24-6,363.36-1,320.56

Finding the Fourth Proportional to 4,242.24, 6,363.36 and 1,320.56

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Solution

The fourth proportional to 4,242.24, 6,363.36 and 1,320.56 is: 1,980.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,242.24 : 6,363.36 = 1,320.56 : x
  2. Step 2: Convert to fraction form
    4,242.24/6,363.36 = 1,320.56/x
  3. Step 3: Cross multiply
    4,242.24x = 6,363.36 × 1,320.56
  4. Step 4: Simplify right side
    4,242.24x = 8,403,198.68
  5. Step 5: Solve for x
    x = 8,403,198.68/4,242.24
  6. Step 6: Final answer
    x = 1,980.84

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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.