Home / 1,004.20-1,385.85-562.09

Finding the Fourth Proportional to 1,004.20, 1,385.85 and 562.09

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Solution

The fourth proportional to 1,004.20, 1,385.85 and 562.09 is: 775.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004.20 : 1,385.85 = 562.09 : x
  2. Step 2: Convert to fraction form
    1,004.20/1,385.85 = 562.09/x
  3. Step 3: Cross multiply
    1,004.20x = 1,385.85 × 562.09
  4. Step 4: Simplify right side
    1,004.20x = 778,965.50
  5. Step 5: Solve for x
    x = 778,965.50/1,004.20
  6. Step 6: Final answer
    x = 775.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.