Home / 3,027.10-4,176.30-1,979.76

Finding the Fourth Proportional to 3,027.10, 4,176.30 and 1,979.76

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Solution

The fourth proportional to 3,027.10, 4,176.30 and 1,979.76 is: 2,731.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,027.10 : 4,176.30 = 1,979.76 : x
  2. Step 2: Convert to fraction form
    3,027.10/4,176.30 = 1,979.76/x
  3. Step 3: Cross multiply
    3,027.10x = 4,176.30 × 1,979.76
  4. Step 4: Simplify right side
    3,027.10x = 8,268,071.69
  5. Step 5: Solve for x
    x = 8,268,071.69/3,027.10
  6. Step 6: Final answer
    x = 2,731.35

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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.