Home / 5,172.26-7,138.14-2,903.55

Finding the Fourth Proportional to 5,172.26, 7,138.14 and 2,903.55

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Solution

The fourth proportional to 5,172.26, 7,138.14 and 2,903.55 is: 4,007.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.26 : 7,138.14 = 2,903.55 : x
  2. Step 2: Convert to fraction form
    5,172.26/7,138.14 = 2,903.55/x
  3. Step 3: Cross multiply
    5,172.26x = 7,138.14 × 2,903.55
  4. Step 4: Simplify right side
    5,172.26x = 20,725,946.40
  5. Step 5: Solve for x
    x = 20,725,946.40/5,172.26
  6. Step 6: Final answer
    x = 4,007.14

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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.