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Finding the Fourth Proportional to 3,387.83, 4,674.99 and 1,895.49

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Solution

The fourth proportional to 3,387.83, 4,674.99 and 1,895.49 is: 2,615.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.83 : 4,674.99 = 1,895.49 : x
  2. Step 2: Convert to fraction form
    3,387.83/4,674.99 = 1,895.49/x
  3. Step 3: Cross multiply
    3,387.83x = 4,674.99 × 1,895.49
  4. Step 4: Simplify right side
    3,387.83x = 8,861,387.32
  5. Step 5: Solve for x
    x = 8,861,387.32/3,387.83
  6. Step 6: Final answer
    x = 2,615.65

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1.5x scale

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.