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Finding the Fourth Proportional to 4.55, 6.20 and 4.52

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Solution

The fourth proportional to 4.55, 6.20 and 4.52 is: 6.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.55 : 6.20 = 4.52 : x
  2. Step 2: Convert to fraction form
    4.55/6.20 = 4.52/x
  3. Step 3: Cross multiply
    4.55x = 6.20 × 4.52
  4. Step 4: Simplify right side
    4.55x = 28.02
  5. Step 5: Solve for x
    x = 28.02/4.55
  6. Step 6: Final answer
    x = 6.16

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.