Home / 2,709.45-4,064.18-1,129.95

Finding the Fourth Proportional to 2,709.45, 4,064.18 and 1,129.95

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Solution

The fourth proportional to 2,709.45, 4,064.18 and 1,129.95 is: 1,694.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709.45 : 4,064.18 = 1,129.95 : x
  2. Step 2: Convert to fraction form
    2,709.45/4,064.18 = 1,129.95/x
  3. Step 3: Cross multiply
    2,709.45x = 4,064.18 × 1,129.95
  4. Step 4: Simplify right side
    2,709.45x = 4,592,314.54
  5. Step 5: Solve for x
    x = 4,592,314.54/2,709.45
  6. Step 6: Final answer
    x = 1,694.93

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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.