Home / 3,425.85-4,727.82-2,166.45

Finding the Fourth Proportional to 3,425.85, 4,727.82 and 2,166.45

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Solution

The fourth proportional to 3,425.85, 4,727.82 and 2,166.45 is: 2,989.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.85 : 4,727.82 = 2,166.45 : x
  2. Step 2: Convert to fraction form
    3,425.85/4,727.82 = 2,166.45/x
  3. Step 3: Cross multiply
    3,425.85x = 4,727.82 × 2,166.45
  4. Step 4: Simplify right side
    3,425.85x = 10,242,574.81
  5. Step 5: Solve for x
    x = 10,242,574.81/3,425.85
  6. Step 6: Final answer
    x = 2,989.79

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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.