Home / 3,115.52-4,672.79-1,035.55

Finding the Fourth Proportional to 3,115.52, 4,672.79 and 1,035.55

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Solution

The fourth proportional to 3,115.52, 4,672.79 and 1,035.55 is: 1,553.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.52 : 4,672.79 = 1,035.55 : x
  2. Step 2: Convert to fraction form
    3,115.52/4,672.79 = 1,035.55/x
  3. Step 3: Cross multiply
    3,115.52x = 4,672.79 × 1,035.55
  4. Step 4: Simplify right side
    3,115.52x = 4,838,907.68
  5. Step 5: Solve for x
    x = 4,838,907.68/3,115.52
  6. Step 6: Final answer
    x = 1,553.16

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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.