Home / 2,712.77-3,745.75-2,082.30

Finding the Fourth Proportional to 2,712.77, 3,745.75 and 2,082.30

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Solution

The fourth proportional to 2,712.77, 3,745.75 and 2,082.30 is: 2,875.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.77 : 3,745.75 = 2,082.30 : x
  2. Step 2: Convert to fraction form
    2,712.77/3,745.75 = 2,082.30/x
  3. Step 3: Cross multiply
    2,712.77x = 3,745.75 × 2,082.30
  4. Step 4: Simplify right side
    2,712.77x = 7,799,783.88
  5. Step 5: Solve for x
    x = 7,799,783.88/2,712.77
  6. Step 6: Final answer
    x = 2,875.21

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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.