Home / 2,715.94-3,748.08-1,520.90

Finding the Fourth Proportional to 2,715.94, 3,748.08 and 1,520.90

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Solution

The fourth proportional to 2,715.94, 3,748.08 and 1,520.90 is: 2,098.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.94 : 3,748.08 = 1,520.90 : x
  2. Step 2: Convert to fraction form
    2,715.94/3,748.08 = 1,520.90/x
  3. Step 3: Cross multiply
    2,715.94x = 3,748.08 × 1,520.90
  4. Step 4: Simplify right side
    2,715.94x = 5,700,454.87
  5. Step 5: Solve for x
    x = 5,700,454.87/2,715.94
  6. Step 6: Final answer
    x = 2,098.89

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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.