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Finding the Fourth Proportional to 3,554.76, 5,324.34 and 2,931.44

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Solution

The fourth proportional to 3,554.76, 5,324.34 and 2,931.44 is: 4,390.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,554.76 : 5,324.34 = 2,931.44 : x
  2. Step 2: Convert to fraction form
    3,554.76/5,324.34 = 2,931.44/x
  3. Step 3: Cross multiply
    3,554.76x = 5,324.34 × 2,931.44
  4. Step 4: Simplify right side
    3,554.76x = 15,607,983.25
  5. Step 5: Solve for x
    x = 15,607,983.25/3,554.76
  6. Step 6: Final answer
    x = 4,390.73

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1.5x scale

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.