Home / 3,187.68-4,780.44-1,627.08

Finding the Fourth Proportional to 3,187.68, 4,780.44 and 1,627.08

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Solution

The fourth proportional to 3,187.68, 4,780.44 and 1,627.08 is: 2,440.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.68 : 4,780.44 = 1,627.08 : x
  2. Step 2: Convert to fraction form
    3,187.68/4,780.44 = 1,627.08/x
  3. Step 3: Cross multiply
    3,187.68x = 4,780.44 × 1,627.08
  4. Step 4: Simplify right side
    3,187.68x = 7,778,158.32
  5. Step 5: Solve for x
    x = 7,778,158.32/3,187.68
  6. Step 6: Final answer
    x = 2,440.07

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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.