Home / 3,709.05-5,561.95-1,112.19

Finding the Fourth Proportional to 3,709.05, 5,561.95 and 1,112.19

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Solution

The fourth proportional to 3,709.05, 5,561.95 and 1,112.19 is: 1,667.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.05 : 5,561.95 = 1,112.19 : x
  2. Step 2: Convert to fraction form
    3,709.05/5,561.95 = 1,112.19/x
  3. Step 3: Cross multiply
    3,709.05x = 5,561.95 × 1,112.19
  4. Step 4: Simplify right side
    3,709.05x = 6,185,945.17
  5. Step 5: Solve for x
    x = 6,185,945.17/3,709.05
  6. Step 6: Final answer
    x = 1,667.80

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1.5x scale

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.