Home / 2,749.22-3,792.90-1,806.08

Finding the Fourth Proportional to 2,749.22, 3,792.90 and 1,806.08

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Solution

The fourth proportional to 2,749.22, 3,792.90 and 1,806.08 is: 2,491.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.22 : 3,792.90 = 1,806.08 : x
  2. Step 2: Convert to fraction form
    2,749.22/3,792.90 = 1,806.08/x
  3. Step 3: Cross multiply
    2,749.22x = 3,792.90 × 1,806.08
  4. Step 4: Simplify right side
    2,749.22x = 6,850,280.83
  5. Step 5: Solve for x
    x = 6,850,280.83/2,749.22
  6. Step 6: Final answer
    x = 2,491.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.