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Finding the Fourth Proportional to 2,387.96, 3,582.03 and 656.58

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Solution

The fourth proportional to 2,387.96, 3,582.03 and 656.58 is: 984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.96 : 3,582.03 = 656.58 : x
  2. Step 2: Convert to fraction form
    2,387.96/3,582.03 = 656.58/x
  3. Step 3: Cross multiply
    2,387.96x = 3,582.03 × 656.58
  4. Step 4: Simplify right side
    2,387.96x = 2,351,905.15
  5. Step 5: Solve for x
    x = 2,351,905.15/2,387.96
  6. Step 6: Final answer
    x = 984.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.