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Finding the Fourth Proportional to 5.50, 7.58 and 4.69

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Solution

The fourth proportional to 5.50, 7.58 and 4.69 is: 6.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5.50 : 7.58 = 4.69 : x
  2. Step 2: Convert to fraction form
    5.50/7.58 = 4.69/x
  3. Step 3: Cross multiply
    5.50x = 7.58 × 4.69
  4. Step 4: Simplify right side
    5.50x = 35.49
  5. Step 5: Solve for x
    x = 35.49/5.50
  6. Step 6: Final answer
    x = 6.46

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.