Home / 3,143.99-4,719.45-2,656.43

Finding the Fourth Proportional to 3,143.99, 4,719.45 and 2,656.43

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Solution

The fourth proportional to 3,143.99, 4,719.45 and 2,656.43 is: 3,987.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.99 : 4,719.45 = 2,656.43 : x
  2. Step 2: Convert to fraction form
    3,143.99/4,719.45 = 2,656.43/x
  3. Step 3: Cross multiply
    3,143.99x = 4,719.45 × 2,656.43
  4. Step 4: Simplify right side
    3,143.99x = 12,536,888.56
  5. Step 5: Solve for x
    x = 12,536,888.56/3,143.99
  6. Step 6: Final answer
    x = 3,987.57

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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.