Home / 4,979.00-6,871.28-2,740.91

Finding the Fourth Proportional to 4,979.00, 6,871.28 and 2,740.91

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Solution

The fourth proportional to 4,979.00, 6,871.28 and 2,740.91 is: 3,782.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.00 : 6,871.28 = 2,740.91 : x
  2. Step 2: Convert to fraction form
    4,979.00/6,871.28 = 2,740.91/x
  3. Step 3: Cross multiply
    4,979.00x = 6,871.28 × 2,740.91
  4. Step 4: Simplify right side
    4,979.00x = 18,833,512.00
  5. Step 5: Solve for x
    x = 18,833,512.00/4,979.00
  6. Step 6: Final answer
    x = 3,782.59

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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.