Home / 3,237.80-4,468.16-1,821.49

Finding the Fourth Proportional to 3,237.80, 4,468.16 and 1,821.49

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Solution

The fourth proportional to 3,237.80, 4,468.16 and 1,821.49 is: 2,513.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,237.80 : 4,468.16 = 1,821.49 : x
  2. Step 2: Convert to fraction form
    3,237.80/4,468.16 = 1,821.49/x
  3. Step 3: Cross multiply
    3,237.80x = 4,468.16 × 1,821.49
  4. Step 4: Simplify right side
    3,237.80x = 8,138,682.90
  5. Step 5: Solve for x
    x = 8,138,682.90/3,237.80
  6. Step 6: Final answer
    x = 2,513.65

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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.