Home / 3,387.24-4,673.70-2,145

Finding the Fourth Proportional to 3,387.24, 4,673.70 and 2,145

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Solution

The fourth proportional to 3,387.24, 4,673.70 and 2,145 is: 2,959.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.24 : 4,673.70 = 2,145 : x
  2. Step 2: Convert to fraction form
    3,387.24/4,673.70 = 2,145/x
  3. Step 3: Cross multiply
    3,387.24x = 4,673.70 × 2,145
  4. Step 4: Simplify right side
    3,387.24x = 10,025,086.50
  5. Step 5: Solve for x
    x = 10,025,086.50/3,387.24
  6. Step 6: Final answer
    x = 2,959.66

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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.