Home / 3,638.56-5,459.48-1,973.20

Finding the Fourth Proportional to 3,638.56, 5,459.48 and 1,973.20

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Solution

The fourth proportional to 3,638.56, 5,459.48 and 1,973.20 is: 2,960.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.56 : 5,459.48 = 1,973.20 : x
  2. Step 2: Convert to fraction form
    3,638.56/5,459.48 = 1,973.20/x
  3. Step 3: Cross multiply
    3,638.56x = 5,459.48 × 1,973.20
  4. Step 4: Simplify right side
    3,638.56x = 10,772,645.94
  5. Step 5: Solve for x
    x = 10,772,645.94/3,638.56
  6. Step 6: Final answer
    x = 2,960.69

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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.