Home / 3,098.22-4,647.51-906.75

Finding the Fourth Proportional to 3,098.22, 4,647.51 and 906.75

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Solution

The fourth proportional to 3,098.22, 4,647.51 and 906.75 is: 1,360.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.22 : 4,647.51 = 906.75 : x
  2. Step 2: Convert to fraction form
    3,098.22/4,647.51 = 906.75/x
  3. Step 3: Cross multiply
    3,098.22x = 4,647.51 × 906.75
  4. Step 4: Simplify right side
    3,098.22x = 4,214,129.69
  5. Step 5: Solve for x
    x = 4,214,129.69/3,098.22
  6. Step 6: Final answer
    x = 1,360.18

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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.