Home / 3,291.49-4,539.67-2,170.63

Finding the Fourth Proportional to 3,291.49, 4,539.67 and 2,170.63

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Solution

The fourth proportional to 3,291.49, 4,539.67 and 2,170.63 is: 2,993.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.49 : 4,539.67 = 2,170.63 : x
  2. Step 2: Convert to fraction form
    3,291.49/4,539.67 = 2,170.63/x
  3. Step 3: Cross multiply
    3,291.49x = 4,539.67 × 2,170.63
  4. Step 4: Simplify right side
    3,291.49x = 9,853,943.89
  5. Step 5: Solve for x
    x = 9,853,943.89/3,291.49
  6. Step 6: Final answer
    x = 2,993.76

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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.