Home / 5,356.68-8,031.96-2,581.08

Finding the Fourth Proportional to 5,356.68, 8,031.96 and 2,581.08

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Solution

The fourth proportional to 5,356.68, 8,031.96 and 2,581.08 is: 3,870.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,356.68 : 8,031.96 = 2,581.08 : x
  2. Step 2: Convert to fraction form
    5,356.68/8,031.96 = 2,581.08/x
  3. Step 3: Cross multiply
    5,356.68x = 8,031.96 × 2,581.08
  4. Step 4: Simplify right side
    5,356.68x = 20,731,131.32
  5. Step 5: Solve for x
    x = 20,731,131.32/5,356.68
  6. Step 6: Final answer
    x = 3,870.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.