Home / 3,501.78-5,252.56-1,421.73

Finding the Fourth Proportional to 3,501.78, 5,252.56 and 1,421.73

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Solution

The fourth proportional to 3,501.78, 5,252.56 and 1,421.73 is: 2,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,501.78 : 5,252.56 = 1,421.73 : x
  2. Step 2: Convert to fraction form
    3,501.78/5,252.56 = 1,421.73/x
  3. Step 3: Cross multiply
    3,501.78x = 5,252.56 × 1,421.73
  4. Step 4: Simplify right side
    3,501.78x = 7,467,728.15
  5. Step 5: Solve for x
    x = 7,467,728.15/3,501.78
  6. Step 6: Final answer
    x = 2,132.55

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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.