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Finding the Fourth Proportional to 5,422.57, 8,133.13 and 1,527.28

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Solution

The fourth proportional to 5,422.57, 8,133.13 and 1,527.28 is: 2,290.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.57 : 8,133.13 = 1,527.28 : x
  2. Step 2: Convert to fraction form
    5,422.57/8,133.13 = 1,527.28/x
  3. Step 3: Cross multiply
    5,422.57x = 8,133.13 × 1,527.28
  4. Step 4: Simplify right side
    5,422.57x = 12,421,548.36
  5. Step 5: Solve for x
    x = 12,421,548.36/5,422.57
  6. Step 6: Final answer
    x = 2,290.71

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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.