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Finding the Fourth Proportional to 41.60, 58.40 and 41.60

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Solution

The fourth proportional to 41.60, 58.40 and 41.60 is: 58.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.60 : 58.40 = 41.60 : x
  2. Step 2: Convert to fraction form
    41.60/58.40 = 41.60/x
  3. Step 3: Cross multiply
    41.60x = 58.40 × 41.60
  4. Step 4: Simplify right side
    41.60x = 2,429.44
  5. Step 5: Solve for x
    x = 2,429.44/41.60
  6. Step 6: Final answer
    x = 58.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.