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Finding the Fourth Proportional to 3,495.96, 5,242.24 and 1,274.72

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Solution

The fourth proportional to 3,495.96, 5,242.24 and 1,274.72 is: 1,911.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,495.96 : 5,242.24 = 1,274.72 : x
  2. Step 2: Convert to fraction form
    3,495.96/5,242.24 = 1,274.72/x
  3. Step 3: Cross multiply
    3,495.96x = 5,242.24 × 1,274.72
  4. Step 4: Simplify right side
    3,495.96x = 6,682,388.17
  5. Step 5: Solve for x
    x = 6,682,388.17/3,495.96
  6. Step 6: Final answer
    x = 1,911.46

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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.