Home / 2,695.81-3,720.55-1,517.11

Finding the Fourth Proportional to 2,695.81, 3,720.55 and 1,517.11

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Solution

The fourth proportional to 2,695.81, 3,720.55 and 1,517.11 is: 2,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.81 : 3,720.55 = 1,517.11 : x
  2. Step 2: Convert to fraction form
    2,695.81/3,720.55 = 1,517.11/x
  3. Step 3: Cross multiply
    2,695.81x = 3,720.55 × 1,517.11
  4. Step 4: Simplify right side
    2,695.81x = 5,644,465.01
  5. Step 5: Solve for x
    x = 5,644,465.01/2,695.81
  6. Step 6: Final answer
    x = 2,093.80

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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.