Home / 3,143.05-4,711.13-1,580.56

Finding the Fourth Proportional to 3,143.05, 4,711.13 and 1,580.56

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Solution

The fourth proportional to 3,143.05, 4,711.13 and 1,580.56 is: 2,369.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.05 : 4,711.13 = 1,580.56 : x
  2. Step 2: Convert to fraction form
    3,143.05/4,711.13 = 1,580.56/x
  3. Step 3: Cross multiply
    3,143.05x = 4,711.13 × 1,580.56
  4. Step 4: Simplify right side
    3,143.05x = 7,446,227.58
  5. Step 5: Solve for x
    x = 7,446,227.58/3,143.05
  6. Step 6: Final answer
    x = 2,369.11

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1.5x scale

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.