Home / 3,115.66-4,672.35-1,035.28

Finding the Fourth Proportional to 3,115.66, 4,672.35 and 1,035.28

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Solution

The fourth proportional to 3,115.66, 4,672.35 and 1,035.28 is: 1,552.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.66 : 4,672.35 = 1,035.28 : x
  2. Step 2: Convert to fraction form
    3,115.66/4,672.35 = 1,035.28/x
  3. Step 3: Cross multiply
    3,115.66x = 4,672.35 × 1,035.28
  4. Step 4: Simplify right side
    3,115.66x = 4,837,190.51
  5. Step 5: Solve for x
    x = 4,837,190.51/3,115.66
  6. Step 6: Final answer
    x = 1,552.54

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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.