Home / 3,090.92-4,256.36-2,619.50

Finding the Fourth Proportional to 3,090.92, 4,256.36 and 2,619.50

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Solution

The fourth proportional to 3,090.92, 4,256.36 and 2,619.50 is: 3,607.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.92 : 4,256.36 = 2,619.50 : x
  2. Step 2: Convert to fraction form
    3,090.92/4,256.36 = 2,619.50/x
  3. Step 3: Cross multiply
    3,090.92x = 4,256.36 × 2,619.50
  4. Step 4: Simplify right side
    3,090.92x = 11,149,535.02
  5. Step 5: Solve for x
    x = 11,149,535.02/3,090.92
  6. Step 6: Final answer
    x = 3,607.19

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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.