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Finding the Fourth Proportional to 5,919.60, 8,864.20 and 5,744.40

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Solution

The fourth proportional to 5,919.60, 8,864.20 and 5,744.40 is: 8,601.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.60 : 8,864.20 = 5,744.40 : x
  2. Step 2: Convert to fraction form
    5,919.60/8,864.20 = 5,744.40/x
  3. Step 3: Cross multiply
    5,919.60x = 8,864.20 × 5,744.40
  4. Step 4: Simplify right side
    5,919.60x = 50,919,510.48
  5. Step 5: Solve for x
    x = 50,919,510.48/5,919.60
  6. Step 6: Final answer
    x = 8,601.85

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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.