Home / 1,868.96-2,579.28-1,040.96

Finding the Fourth Proportional to 1,868.96, 2,579.28 and 1,040.96

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Solution

The fourth proportional to 1,868.96, 2,579.28 and 1,040.96 is: 1,436.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.96 : 2,579.28 = 1,040.96 : x
  2. Step 2: Convert to fraction form
    1,868.96/2,579.28 = 1,040.96/x
  3. Step 3: Cross multiply
    1,868.96x = 2,579.28 × 1,040.96
  4. Step 4: Simplify right side
    1,868.96x = 2,684,927.31
  5. Step 5: Solve for x
    x = 2,684,927.31/1,868.96
  6. Step 6: Final answer
    x = 1,436.59

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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.