Home / 1,924.98-2,656.49-1,040.78

Finding the Fourth Proportional to 1,924.98, 2,656.49 and 1,040.78

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Solution

The fourth proportional to 1,924.98, 2,656.49 and 1,040.78 is: 1,436.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.98 : 2,656.49 = 1,040.78 : x
  2. Step 2: Convert to fraction form
    1,924.98/2,656.49 = 1,040.78/x
  3. Step 3: Cross multiply
    1,924.98x = 2,656.49 × 1,040.78
  4. Step 4: Simplify right side
    1,924.98x = 2,764,823.10
  5. Step 5: Solve for x
    x = 2,764,823.10/1,924.98
  6. Step 6: Final answer
    x = 1,436.29

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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.