Home / 1,868.82-2,579.08-1,061.30

Finding the Fourth Proportional to 1,868.82, 2,579.08 and 1,061.30

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Solution

The fourth proportional to 1,868.82, 2,579.08 and 1,061.30 is: 1,464.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.82 : 2,579.08 = 1,061.30 : x
  2. Step 2: Convert to fraction form
    1,868.82/2,579.08 = 1,061.30/x
  3. Step 3: Cross multiply
    1,868.82x = 2,579.08 × 1,061.30
  4. Step 4: Simplify right side
    1,868.82x = 2,737,177.60
  5. Step 5: Solve for x
    x = 2,737,177.60/1,868.82
  6. Step 6: Final answer
    x = 1,464.66

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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.