Home / 4,979.61-6,871.83-2,826.57

Finding the Fourth Proportional to 4,979.61, 6,871.83 and 2,826.57

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Solution

The fourth proportional to 4,979.61, 6,871.83 and 2,826.57 is: 3,900.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.61 : 6,871.83 = 2,826.57 : x
  2. Step 2: Convert to fraction form
    4,979.61/6,871.83 = 2,826.57/x
  3. Step 3: Cross multiply
    4,979.61x = 6,871.83 × 2,826.57
  4. Step 4: Simplify right side
    4,979.61x = 19,423,708.52
  5. Step 5: Solve for x
    x = 19,423,708.52/4,979.61
  6. Step 6: Final answer
    x = 3,900.65

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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.