Home / 2,956.08-4,078.08-2,071.56

Finding the Fourth Proportional to 2,956.08, 4,078.08 and 2,071.56

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Solution

The fourth proportional to 2,956.08, 4,078.08 and 2,071.56 is: 2,857.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.08 : 4,078.08 = 2,071.56 : x
  2. Step 2: Convert to fraction form
    2,956.08/4,078.08 = 2,071.56/x
  3. Step 3: Cross multiply
    2,956.08x = 4,078.08 × 2,071.56
  4. Step 4: Simplify right side
    2,956.08x = 8,447,987.40
  5. Step 5: Solve for x
    x = 8,447,987.40/2,956.08
  6. Step 6: Final answer
    x = 2,857.83

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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.