Home / 3,709.81-5,565.25-1,112.95

Finding the Fourth Proportional to 3,709.81, 5,565.25 and 1,112.95

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Solution

The fourth proportional to 3,709.81, 5,565.25 and 1,112.95 is: 1,669.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.81 : 5,565.25 = 1,112.95 : x
  2. Step 2: Convert to fraction form
    3,709.81/5,565.25 = 1,112.95/x
  3. Step 3: Cross multiply
    3,709.81x = 5,565.25 × 1,112.95
  4. Step 4: Simplify right side
    3,709.81x = 6,193,817.16
  5. Step 5: Solve for x
    x = 6,193,817.16/3,709.81
  6. Step 6: Final answer
    x = 1,669.58

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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.