Home / 3,143.24-4,717.08-1,388.67

Finding the Fourth Proportional to 3,143.24, 4,717.08 and 1,388.67

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Solution

The fourth proportional to 3,143.24, 4,717.08 and 1,388.67 is: 2,083.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.24 : 4,717.08 = 1,388.67 : x
  2. Step 2: Convert to fraction form
    3,143.24/4,717.08 = 1,388.67/x
  3. Step 3: Cross multiply
    3,143.24x = 4,717.08 × 1,388.67
  4. Step 4: Simplify right side
    3,143.24x = 6,550,467.48
  5. Step 5: Solve for x
    x = 6,550,467.48/3,143.24
  6. Step 6: Final answer
    x = 2,083.99

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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.