Home / 1,040.26-1,572.20-1,022.34

Finding the Fourth Proportional to 1,040.26, 1,572.20 and 1,022.34

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Solution

The fourth proportional to 1,040.26, 1,572.20 and 1,022.34 is: 1,545.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.26 : 1,572.20 = 1,022.34 : x
  2. Step 2: Convert to fraction form
    1,040.26/1,572.20 = 1,022.34/x
  3. Step 3: Cross multiply
    1,040.26x = 1,572.20 × 1,022.34
  4. Step 4: Simplify right side
    1,040.26x = 1,607,317.84
  5. Step 5: Solve for x
    x = 1,607,317.84/1,040.26
  6. Step 6: Final answer
    x = 1,545.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.