Home / 2,758.30-3,808.45-1,697.50

Finding the Fourth Proportional to 2,758.30, 3,808.45 and 1,697.50

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Solution

The fourth proportional to 2,758.30, 3,808.45 and 1,697.50 is: 2,343.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.30 : 3,808.45 = 1,697.50 : x
  2. Step 2: Convert to fraction form
    2,758.30/3,808.45 = 1,697.50/x
  3. Step 3: Cross multiply
    2,758.30x = 3,808.45 × 1,697.50
  4. Step 4: Simplify right side
    2,758.30x = 6,464,843.88
  5. Step 5: Solve for x
    x = 6,464,843.88/2,758.30
  6. Step 6: Final answer
    x = 2,343.78

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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.