Home / 2,860.87-4,288.55-1,104.58

Finding the Fourth Proportional to 2,860.87, 4,288.55 and 1,104.58

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Solution

The fourth proportional to 2,860.87, 4,288.55 and 1,104.58 is: 1,655.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.87 : 4,288.55 = 1,104.58 : x
  2. Step 2: Convert to fraction form
    2,860.87/4,288.55 = 1,104.58/x
  3. Step 3: Cross multiply
    2,860.87x = 4,288.55 × 1,104.58
  4. Step 4: Simplify right side
    2,860.87x = 4,737,019.59
  5. Step 5: Solve for x
    x = 4,737,019.59/2,860.87
  6. Step 6: Final answer
    x = 1,655.80

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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.