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Finding the Fourth Proportional to 6,395.42, 8,808.03 and 5,510.90

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Solution

The fourth proportional to 6,395.42, 8,808.03 and 5,510.90 is: 7,589.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,395.42 : 8,808.03 = 5,510.90 : x
  2. Step 2: Convert to fraction form
    6,395.42/8,808.03 = 5,510.90/x
  3. Step 3: Cross multiply
    6,395.42x = 8,808.03 × 5,510.90
  4. Step 4: Simplify right side
    6,395.42x = 48,540,172.53
  5. Step 5: Solve for x
    x = 48,540,172.53/6,395.42
  6. Step 6: Final answer
    x = 7,589.83

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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.