Home / 1,143.18-1,705.79-1,073.52

Finding the Fourth Proportional to 1,143.18, 1,705.79 and 1,073.52

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Solution

The fourth proportional to 1,143.18, 1,705.79 and 1,073.52 is: 1,601.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143.18 : 1,705.79 = 1,073.52 : x
  2. Step 2: Convert to fraction form
    1,143.18/1,705.79 = 1,073.52/x
  3. Step 3: Cross multiply
    1,143.18x = 1,705.79 × 1,073.52
  4. Step 4: Simplify right side
    1,143.18x = 1,831,202.36
  5. Step 5: Solve for x
    x = 1,831,202.36/1,143.18
  6. Step 6: Final answer
    x = 1,601.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.