Home / 3,580.43-5,370.39-1,115.01

Finding the Fourth Proportional to 3,580.43, 5,370.39 and 1,115.01

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Solution

The fourth proportional to 3,580.43, 5,370.39 and 1,115.01 is: 1,672.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.43 : 5,370.39 = 1,115.01 : x
  2. Step 2: Convert to fraction form
    3,580.43/5,370.39 = 1,115.01/x
  3. Step 3: Cross multiply
    3,580.43x = 5,370.39 × 1,115.01
  4. Step 4: Simplify right side
    3,580.43x = 5,988,038.55
  5. Step 5: Solve for x
    x = 5,988,038.55/3,580.43
  6. Step 6: Final answer
    x = 1,672.44

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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.