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Finding the Fourth Proportional to 7,589.79, 11,389.83 and 2,659.50

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Solution

The fourth proportional to 7,589.79, 11,389.83 and 2,659.50 is: 3,991.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,589.79 : 11,389.83 = 2,659.50 : x
  2. Step 2: Convert to fraction form
    7,589.79/11,389.83 = 2,659.50/x
  3. Step 3: Cross multiply
    7,589.79x = 11,389.83 × 2,659.50
  4. Step 4: Simplify right side
    7,589.79x = 30,291,252.89
  5. Step 5: Solve for x
    x = 30,291,252.89/7,589.79
  6. Step 6: Final answer
    x = 3,991.05

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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.