Home / 3,184.14-4,394.31-2,120.07

Finding the Fourth Proportional to 3,184.14, 4,394.31 and 2,120.07

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Solution

The fourth proportional to 3,184.14, 4,394.31 and 2,120.07 is: 2,925.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,184.14 : 4,394.31 = 2,120.07 : x
  2. Step 2: Convert to fraction form
    3,184.14/4,394.31 = 2,120.07/x
  3. Step 3: Cross multiply
    3,184.14x = 4,394.31 × 2,120.07
  4. Step 4: Simplify right side
    3,184.14x = 9,316,244.80
  5. Step 5: Solve for x
    x = 9,316,244.80/3,184.14
  6. Step 6: Final answer
    x = 2,925.83

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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.