Home / 3,072.90-4,240.84-1,747.02

Finding the Fourth Proportional to 3,072.90, 4,240.84 and 1,747.02

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Solution

The fourth proportional to 3,072.90, 4,240.84 and 1,747.02 is: 2,411.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.90 : 4,240.84 = 1,747.02 : x
  2. Step 2: Convert to fraction form
    3,072.90/4,240.84 = 1,747.02/x
  3. Step 3: Cross multiply
    3,072.90x = 4,240.84 × 1,747.02
  4. Step 4: Simplify right side
    3,072.90x = 7,408,832.30
  5. Step 5: Solve for x
    x = 7,408,832.30/3,072.90
  6. Step 6: Final answer
    x = 2,411.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.