Home / 1,122.26-1,679.91-1,026.57

Finding the Fourth Proportional to 1,122.26, 1,679.91 and 1,026.57

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Solution

The fourth proportional to 1,122.26, 1,679.91 and 1,026.57 is: 1,536.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122.26 : 1,679.91 = 1,026.57 : x
  2. Step 2: Convert to fraction form
    1,122.26/1,679.91 = 1,026.57/x
  3. Step 3: Cross multiply
    1,122.26x = 1,679.91 × 1,026.57
  4. Step 4: Simplify right side
    1,122.26x = 1,724,545.21
  5. Step 5: Solve for x
    x = 1,724,545.21/1,122.26
  6. Step 6: Final answer
    x = 1,536.67

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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.