Home / 5,172.29-7,137.46-2,903.42

Finding the Fourth Proportional to 5,172.29, 7,137.46 and 2,903.42

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Solution

The fourth proportional to 5,172.29, 7,137.46 and 2,903.42 is: 4,006.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.29 : 7,137.46 = 2,903.42 : x
  2. Step 2: Convert to fraction form
    5,172.29/7,137.46 = 2,903.42/x
  3. Step 3: Cross multiply
    5,172.29x = 7,137.46 × 2,903.42
  4. Step 4: Simplify right side
    5,172.29x = 20,723,044.11
  5. Step 5: Solve for x
    x = 20,723,044.11/5,172.29
  6. Step 6: Final answer
    x = 4,006.55

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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.