Home / 2,715.30-4,049.13-2,690.64

Finding the Fourth Proportional to 2,715.30, 4,049.13 and 2,690.64

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Solution

The fourth proportional to 2,715.30, 4,049.13 and 2,690.64 is: 4,012.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.30 : 4,049.13 = 2,690.64 : x
  2. Step 2: Convert to fraction form
    2,715.30/4,049.13 = 2,690.64/x
  3. Step 3: Cross multiply
    2,715.30x = 4,049.13 × 2,690.64
  4. Step 4: Simplify right side
    2,715.30x = 10,894,751.14
  5. Step 5: Solve for x
    x = 10,894,751.14/2,715.30
  6. Step 6: Final answer
    x = 4,012.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.