Home / 4,979.12-6,873.80-3,394.16

Finding the Fourth Proportional to 4,979.12, 6,873.80 and 3,394.16

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Solution

The fourth proportional to 4,979.12, 6,873.80 and 3,394.16 is: 4,685.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.12 : 6,873.80 = 3,394.16 : x
  2. Step 2: Convert to fraction form
    4,979.12/6,873.80 = 3,394.16/x
  3. Step 3: Cross multiply
    4,979.12x = 6,873.80 × 3,394.16
  4. Step 4: Simplify right side
    4,979.12x = 23,330,725.67
  5. Step 5: Solve for x
    x = 23,330,725.67/4,979.12
  6. Step 6: Final answer
    x = 4,685.72

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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.