Home / 2,860.08-4,289.76-1,129.92

Finding the Fourth Proportional to 2,860.08, 4,289.76 and 1,129.92

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Solution

The fourth proportional to 2,860.08, 4,289.76 and 1,129.92 is: 1,694.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.08 : 4,289.76 = 1,129.92 : x
  2. Step 2: Convert to fraction form
    2,860.08/4,289.76 = 1,129.92/x
  3. Step 3: Cross multiply
    2,860.08x = 4,289.76 × 1,129.92
  4. Step 4: Simplify right side
    2,860.08x = 4,847,085.62
  5. Step 5: Solve for x
    x = 4,847,085.62/2,860.08
  6. Step 6: Final answer
    x = 1,694.74

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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.