Home / 3,399.48-4,689.87-2,072.70

Finding the Fourth Proportional to 3,399.48, 4,689.87 and 2,072.70

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Solution

The fourth proportional to 3,399.48, 4,689.87 and 2,072.70 is: 2,859.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.48 : 4,689.87 = 2,072.70 : x
  2. Step 2: Convert to fraction form
    3,399.48/4,689.87 = 2,072.70/x
  3. Step 3: Cross multiply
    3,399.48x = 4,689.87 × 2,072.70
  4. Step 4: Simplify right side
    3,399.48x = 9,720,693.55
  5. Step 5: Solve for x
    x = 9,720,693.55/3,399.48
  6. Step 6: Final answer
    x = 2,859.46

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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.