Home / 3,747.79-5,172.39-2,256.46

Finding the Fourth Proportional to 3,747.79, 5,172.39 and 2,256.46

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Solution

The fourth proportional to 3,747.79, 5,172.39 and 2,256.46 is: 3,114.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.79 : 5,172.39 = 2,256.46 : x
  2. Step 2: Convert to fraction form
    3,747.79/5,172.39 = 2,256.46/x
  3. Step 3: Cross multiply
    3,747.79x = 5,172.39 × 2,256.46
  4. Step 4: Simplify right side
    3,747.79x = 11,671,291.14
  5. Step 5: Solve for x
    x = 11,671,291.14/3,747.79
  6. Step 6: Final answer
    x = 3,114.18

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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.