Home / 2,715.36-4,069.88-1,251.43

Finding the Fourth Proportional to 2,715.36, 4,069.88 and 1,251.43

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Solution

The fourth proportional to 2,715.36, 4,069.88 and 1,251.43 is: 1,875.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.36 : 4,069.88 = 1,251.43 : x
  2. Step 2: Convert to fraction form
    2,715.36/4,069.88 = 1,251.43/x
  3. Step 3: Cross multiply
    2,715.36x = 4,069.88 × 1,251.43
  4. Step 4: Simplify right side
    2,715.36x = 5,093,158.19
  5. Step 5: Solve for x
    x = 5,093,158.19/2,715.36
  6. Step 6: Final answer
    x = 1,875.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.