Home / 5,288.40-7,927.68-2,690.73

Finding the Fourth Proportional to 5,288.40, 7,927.68 and 2,690.73

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Solution

The fourth proportional to 5,288.40, 7,927.68 and 2,690.73 is: 4,033.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,288.40 : 7,927.68 = 2,690.73 : x
  2. Step 2: Convert to fraction form
    5,288.40/7,927.68 = 2,690.73/x
  3. Step 3: Cross multiply
    5,288.40x = 7,927.68 × 2,690.73
  4. Step 4: Simplify right side
    5,288.40x = 21,331,246.41
  5. Step 5: Solve for x
    x = 21,331,246.41/5,288.40
  6. Step 6: Final answer
    x = 4,033.59

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1.5x scale

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.