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Finding the Fourth Proportional to 6,387.99, 9,582.89 and 2,227.40

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Solution

The fourth proportional to 6,387.99, 9,582.89 and 2,227.40 is: 3,341.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.99 : 9,582.89 = 2,227.40 : x
  2. Step 2: Convert to fraction form
    6,387.99/9,582.89 = 2,227.40/x
  3. Step 3: Cross multiply
    6,387.99x = 9,582.89 × 2,227.40
  4. Step 4: Simplify right side
    6,387.99x = 21,344,878.49
  5. Step 5: Solve for x
    x = 21,344,878.49/6,387.99
  6. Step 6: Final answer
    x = 3,341.41

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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.