Home / 1,658.49-2,288.37-986.53

Finding the Fourth Proportional to 1,658.49, 2,288.37 and 986.53

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Solution

The fourth proportional to 1,658.49, 2,288.37 and 986.53 is: 1,361.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658.49 : 2,288.37 = 986.53 : x
  2. Step 2: Convert to fraction form
    1,658.49/2,288.37 = 986.53/x
  3. Step 3: Cross multiply
    1,658.49x = 2,288.37 × 986.53
  4. Step 4: Simplify right side
    1,658.49x = 2,257,545.66
  5. Step 5: Solve for x
    x = 2,257,545.66/1,658.49
  6. Step 6: Final answer
    x = 1,361.21

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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.