Home / 3,709.40-5,565.04-1,112.36

Finding the Fourth Proportional to 3,709.40, 5,565.04 and 1,112.36

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Solution

The fourth proportional to 3,709.40, 5,565.04 and 1,112.36 is: 1,668.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.40 : 5,565.04 = 1,112.36 : x
  2. Step 2: Convert to fraction form
    3,709.40/5,565.04 = 1,112.36/x
  3. Step 3: Cross multiply
    3,709.40x = 5,565.04 × 1,112.36
  4. Step 4: Simplify right side
    3,709.40x = 6,190,327.89
  5. Step 5: Solve for x
    x = 6,190,327.89/3,709.40
  6. Step 6: Final answer
    x = 1,668.82

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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.