Home / 2,926.72-4,034.68-1,806.92

Finding the Fourth Proportional to 2,926.72, 4,034.68 and 1,806.92

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Solution

The fourth proportional to 2,926.72, 4,034.68 and 1,806.92 is: 2,490.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926.72 : 4,034.68 = 1,806.92 : x
  2. Step 2: Convert to fraction form
    2,926.72/4,034.68 = 1,806.92/x
  3. Step 3: Cross multiply
    2,926.72x = 4,034.68 × 1,806.92
  4. Step 4: Simplify right side
    2,926.72x = 7,290,343.99
  5. Step 5: Solve for x
    x = 7,290,343.99/2,926.72
  6. Step 6: Final answer
    x = 2,490.96

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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.