Home / 3,187.98-4,782.58-1,240.04

Finding the Fourth Proportional to 3,187.98, 4,782.58 and 1,240.04

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Solution

The fourth proportional to 3,187.98, 4,782.58 and 1,240.04 is: 1,860.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.98 : 4,782.58 = 1,240.04 : x
  2. Step 2: Convert to fraction form
    3,187.98/4,782.58 = 1,240.04/x
  3. Step 3: Cross multiply
    3,187.98x = 4,782.58 × 1,240.04
  4. Step 4: Simplify right side
    3,187.98x = 5,930,599.36
  5. Step 5: Solve for x
    x = 5,930,599.36/3,187.98
  6. Step 6: Final answer
    x = 1,860.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.