Home / 3,172.51-4,748.41-2,869.39

Finding the Fourth Proportional to 3,172.51, 4,748.41 and 2,869.39

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Solution

The fourth proportional to 3,172.51, 4,748.41 and 2,869.39 is: 4,294.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.51 : 4,748.41 = 2,869.39 : x
  2. Step 2: Convert to fraction form
    3,172.51/4,748.41 = 2,869.39/x
  3. Step 3: Cross multiply
    3,172.51x = 4,748.41 × 2,869.39
  4. Step 4: Simplify right side
    3,172.51x = 13,625,031.89
  5. Step 5: Solve for x
    x = 13,625,031.89/3,172.51
  6. Step 6: Final answer
    x = 4,294.72

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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.