Home / 1,112.60-1,669.36-564.92

Finding the Fourth Proportional to 1,112.60, 1,669.36 and 564.92

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Solution

The fourth proportional to 1,112.60, 1,669.36 and 564.92 is: 847.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.60 : 1,669.36 = 564.92 : x
  2. Step 2: Convert to fraction form
    1,112.60/1,669.36 = 564.92/x
  3. Step 3: Cross multiply
    1,112.60x = 1,669.36 × 564.92
  4. Step 4: Simplify right side
    1,112.60x = 943,054.85
  5. Step 5: Solve for x
    x = 943,054.85/1,112.60
  6. Step 6: Final answer
    x = 847.61

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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.