Home / 2,860.80-4,291.61-1,400.04

Finding the Fourth Proportional to 2,860.80, 4,291.61 and 1,400.04

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Solution

The fourth proportional to 2,860.80, 4,291.61 and 1,400.04 is: 2,100.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.80 : 4,291.61 = 1,400.04 : x
  2. Step 2: Convert to fraction form
    2,860.80/4,291.61 = 1,400.04/x
  3. Step 3: Cross multiply
    2,860.80x = 4,291.61 × 1,400.04
  4. Step 4: Simplify right side
    2,860.80x = 6,008,418.66
  5. Step 5: Solve for x
    x = 6,008,418.66/2,860.80
  6. Step 6: Final answer
    x = 2,100.26

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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.