Home / 4,979.74-6,872.48-2,856.02

Finding the Fourth Proportional to 4,979.74, 6,872.48 and 2,856.02

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Solution

The fourth proportional to 4,979.74, 6,872.48 and 2,856.02 is: 3,941.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.74 : 6,872.48 = 2,856.02 : x
  2. Step 2: Convert to fraction form
    4,979.74/6,872.48 = 2,856.02/x
  3. Step 3: Cross multiply
    4,979.74x = 6,872.48 × 2,856.02
  4. Step 4: Simplify right side
    4,979.74x = 19,627,913.11
  5. Step 5: Solve for x
    x = 19,627,913.11/4,979.74
  6. Step 6: Final answer
    x = 3,941.56

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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.