Home / 2,720.34-4,072.32-1,747.17

Finding the Fourth Proportional to 2,720.34, 4,072.32 and 1,747.17

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Solution

The fourth proportional to 2,720.34, 4,072.32 and 1,747.17 is: 2,615.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.34 : 4,072.32 = 1,747.17 : x
  2. Step 2: Convert to fraction form
    2,720.34/4,072.32 = 1,747.17/x
  3. Step 3: Cross multiply
    2,720.34x = 4,072.32 × 1,747.17
  4. Step 4: Simplify right side
    2,720.34x = 7,115,035.33
  5. Step 5: Solve for x
    x = 7,115,035.33/2,720.34
  6. Step 6: Final answer
    x = 2,615.49

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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.