Home / 3,387.12-4,674.23-1,895.05

Finding the Fourth Proportional to 3,387.12, 4,674.23 and 1,895.05

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Solution

The fourth proportional to 3,387.12, 4,674.23 and 1,895.05 is: 2,615.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.12 : 4,674.23 = 1,895.05 : x
  2. Step 2: Convert to fraction form
    3,387.12/4,674.23 = 1,895.05/x
  3. Step 3: Cross multiply
    3,387.12x = 4,674.23 × 1,895.05
  4. Step 4: Simplify right side
    3,387.12x = 8,857,899.56
  5. Step 5: Solve for x
    x = 8,857,899.56/3,387.12
  6. Step 6: Final answer
    x = 2,615.17

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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.