Home / 1,112.85-1,669.59-701.37

Finding the Fourth Proportional to 1,112.85, 1,669.59 and 701.37

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Solution

The fourth proportional to 1,112.85, 1,669.59 and 701.37 is: 1,052.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.85 : 1,669.59 = 701.37 : x
  2. Step 2: Convert to fraction form
    1,112.85/1,669.59 = 701.37/x
  3. Step 3: Cross multiply
    1,112.85x = 1,669.59 × 701.37
  4. Step 4: Simplify right side
    1,112.85x = 1,171,000.34
  5. Step 5: Solve for x
    x = 1,171,000.34/1,112.85
  6. Step 6: Final answer
    x = 1,052.25

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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.