Home / 3,187.01-4,778.69-1,889.39

Finding the Fourth Proportional to 3,187.01, 4,778.69 and 1,889.39

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Solution

The fourth proportional to 3,187.01, 4,778.69 and 1,889.39 is: 2,833.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.01 : 4,778.69 = 1,889.39 : x
  2. Step 2: Convert to fraction form
    3,187.01/4,778.69 = 1,889.39/x
  3. Step 3: Cross multiply
    3,187.01x = 4,778.69 × 1,889.39
  4. Step 4: Simplify right side
    3,187.01x = 9,028,775.76
  5. Step 5: Solve for x
    x = 9,028,775.76/3,187.01
  6. Step 6: Final answer
    x = 2,833.00

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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.