Home / 5,143.81-7,098.59-3,153.22

Finding the Fourth Proportional to 5,143.81, 7,098.59 and 3,153.22

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Solution

The fourth proportional to 5,143.81, 7,098.59 and 3,153.22 is: 4,351.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.81 : 7,098.59 = 3,153.22 : x
  2. Step 2: Convert to fraction form
    5,143.81/7,098.59 = 3,153.22/x
  3. Step 3: Cross multiply
    5,143.81x = 7,098.59 × 3,153.22
  4. Step 4: Simplify right side
    5,143.81x = 22,383,364.70
  5. Step 5: Solve for x
    x = 22,383,364.70/5,143.81
  6. Step 6: Final answer
    x = 4,351.52

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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.