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Finding the Fourth Proportional to 0.60, 0.83 and 0.56

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Solution

The fourth proportional to 0.60, 0.83 and 0.56 is: 0.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    0.60 : 0.83 = 0.56 : x
  2. Step 2: Convert to fraction form
    0.60/0.83 = 0.56/x
  3. Step 3: Cross multiply
    0.60x = 0.83 × 0.56
  4. Step 4: Simplify right side
    0.60x = 0.46
  5. Step 5: Solve for x
    x = 0.46/0.60
  6. Step 6: Final answer
    x = 0.77

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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.