Home / 4,979.58-6,871.78-2,741.40

Finding the Fourth Proportional to 4,979.58, 6,871.78 and 2,741.40

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Solution

The fourth proportional to 4,979.58, 6,871.78 and 2,741.40 is: 3,783.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.58 : 6,871.78 = 2,741.40 : x
  2. Step 2: Convert to fraction form
    4,979.58/6,871.78 = 2,741.40/x
  3. Step 3: Cross multiply
    4,979.58x = 6,871.78 × 2,741.40
  4. Step 4: Simplify right side
    4,979.58x = 18,838,283.99
  5. Step 5: Solve for x
    x = 18,838,283.99/4,979.58
  6. Step 6: Final answer
    x = 3,783.11

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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.