Home / 1,132.35-1,558.22-1,001.67

Finding the Fourth Proportional to 1,132.35, 1,558.22 and 1,001.67

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Solution

The fourth proportional to 1,132.35, 1,558.22 and 1,001.67 is: 1,378.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.35 : 1,558.22 = 1,001.67 : x
  2. Step 2: Convert to fraction form
    1,132.35/1,558.22 = 1,001.67/x
  3. Step 3: Cross multiply
    1,132.35x = 1,558.22 × 1,001.67
  4. Step 4: Simplify right side
    1,132.35x = 1,560,817.22
  5. Step 5: Solve for x
    x = 1,560,817.22/1,132.35
  6. Step 6: Final answer
    x = 1,378.39

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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.