Home / 7,690.30-11,535.44-3,527.55

Finding the Fourth Proportional to 7,690.30, 11,535.44 and 3,527.55

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Solution

The fourth proportional to 7,690.30, 11,535.44 and 3,527.55 is: 5,291.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.30 : 11,535.44 = 3,527.55 : x
  2. Step 2: Convert to fraction form
    7,690.30/11,535.44 = 3,527.55/x
  3. Step 3: Cross multiply
    7,690.30x = 11,535.44 × 3,527.55
  4. Step 4: Simplify right side
    7,690.30x = 40,691,823.73
  5. Step 5: Solve for x
    x = 40,691,823.73/7,690.30
  6. Step 6: Final answer
    x = 5,291.32

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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.