Home / 3,387.70-4,674.75-1,895.56

Finding the Fourth Proportional to 3,387.70, 4,674.75 and 1,895.56

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Solution

The fourth proportional to 3,387.70, 4,674.75 and 1,895.56 is: 2,615.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.70 : 4,674.75 = 1,895.56 : x
  2. Step 2: Convert to fraction form
    3,387.70/4,674.75 = 1,895.56/x
  3. Step 3: Cross multiply
    3,387.70x = 4,674.75 × 1,895.56
  4. Step 4: Simplify right side
    3,387.70x = 8,861,269.11
  5. Step 5: Solve for x
    x = 8,861,269.11/3,387.70
  6. Step 6: Final answer
    x = 2,615.72

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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.