Home / 2,972.36-4,102.34-2,841.12

Finding the Fourth Proportional to 2,972.36, 4,102.34 and 2,841.12

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Solution

The fourth proportional to 2,972.36, 4,102.34 and 2,841.12 is: 3,921.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.36 : 4,102.34 = 2,841.12 : x
  2. Step 2: Convert to fraction form
    2,972.36/4,102.34 = 2,841.12/x
  3. Step 3: Cross multiply
    2,972.36x = 4,102.34 × 2,841.12
  4. Step 4: Simplify right side
    2,972.36x = 11,655,240.22
  5. Step 5: Solve for x
    x = 11,655,240.22/2,972.36
  6. Step 6: Final answer
    x = 3,921.21

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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.