Home / 3,715.38-5,572.80-1,405.26

Finding the Fourth Proportional to 3,715.38, 5,572.80 and 1,405.26

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Solution

The fourth proportional to 3,715.38, 5,572.80 and 1,405.26 is: 2,107.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.38 : 5,572.80 = 1,405.26 : x
  2. Step 2: Convert to fraction form
    3,715.38/5,572.80 = 1,405.26/x
  3. Step 3: Cross multiply
    3,715.38x = 5,572.80 × 1,405.26
  4. Step 4: Simplify right side
    3,715.38x = 7,831,232.93
  5. Step 5: Solve for x
    x = 7,831,232.93/3,715.38
  6. Step 6: Final answer
    x = 2,107.79

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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.