Home / 2,695.11-3,719.05-1,515.95

Finding the Fourth Proportional to 2,695.11, 3,719.05 and 1,515.95

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Solution

The fourth proportional to 2,695.11, 3,719.05 and 1,515.95 is: 2,091.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.11 : 3,719.05 = 1,515.95 : x
  2. Step 2: Convert to fraction form
    2,695.11/3,719.05 = 1,515.95/x
  3. Step 3: Cross multiply
    2,695.11x = 3,719.05 × 1,515.95
  4. Step 4: Simplify right side
    2,695.11x = 5,637,893.85
  5. Step 5: Solve for x
    x = 5,637,893.85/2,695.11
  6. Step 6: Final answer
    x = 2,091.90

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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.