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Finding the Fourth Proportional to 2.60, 3.58 and 1.52

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Solution

The fourth proportional to 2.60, 3.58 and 1.52 is: 2.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2.60 : 3.58 = 1.52 : x
  2. Step 2: Convert to fraction form
    2.60/3.58 = 1.52/x
  3. Step 3: Cross multiply
    2.60x = 3.58 × 1.52
  4. Step 4: Simplify right side
    2.60x = 5.42
  5. Step 5: Solve for x
    x = 5.42/2.60
  6. Step 6: Final answer
    x = 2.09

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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.