Home / 3,519.84-4,854.96-2,120.16

Finding the Fourth Proportional to 3,519.84, 4,854.96 and 2,120.16

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Solution

The fourth proportional to 3,519.84, 4,854.96 and 2,120.16 is: 2,924.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.84 : 4,854.96 = 2,120.16 : x
  2. Step 2: Convert to fraction form
    3,519.84/4,854.96 = 2,120.16/x
  3. Step 3: Cross multiply
    3,519.84x = 4,854.96 × 2,120.16
  4. Step 4: Simplify right side
    3,519.84x = 10,293,291.99
  5. Step 5: Solve for x
    x = 10,293,291.99/3,519.84
  6. Step 6: Final answer
    x = 2,924.36

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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.