Home / 3,748.98-5,172.89-2,156.19

Finding the Fourth Proportional to 3,748.98, 5,172.89 and 2,156.19

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Solution

The fourth proportional to 3,748.98, 5,172.89 and 2,156.19 is: 2,975.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.98 : 5,172.89 = 2,156.19 : x
  2. Step 2: Convert to fraction form
    3,748.98/5,172.89 = 2,156.19/x
  3. Step 3: Cross multiply
    3,748.98x = 5,172.89 × 2,156.19
  4. Step 4: Simplify right side
    3,748.98x = 11,153,733.69
  5. Step 5: Solve for x
    x = 11,153,733.69/3,748.98
  6. Step 6: Final answer
    x = 2,975.14

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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.