Home / 3,720.01-5,581.47-1,638.55

Finding the Fourth Proportional to 3,720.01, 5,581.47 and 1,638.55

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Solution

The fourth proportional to 3,720.01, 5,581.47 and 1,638.55 is: 2,458.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.01 : 5,581.47 = 1,638.55 : x
  2. Step 2: Convert to fraction form
    3,720.01/5,581.47 = 1,638.55/x
  3. Step 3: Cross multiply
    3,720.01x = 5,581.47 × 1,638.55
  4. Step 4: Simplify right side
    3,720.01x = 9,145,504.55
  5. Step 5: Solve for x
    x = 9,145,504.55/3,720.01
  6. Step 6: Final answer
    x = 2,458.46

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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.