Home / 2,193.28-3,025.01-1,308.90

Finding the Fourth Proportional to 2,193.28, 3,025.01 and 1,308.90

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Solution

The fourth proportional to 2,193.28, 3,025.01 and 1,308.90 is: 1,805.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.28 : 3,025.01 = 1,308.90 : x
  2. Step 2: Convert to fraction form
    2,193.28/3,025.01 = 1,308.90/x
  3. Step 3: Cross multiply
    2,193.28x = 3,025.01 × 1,308.90
  4. Step 4: Simplify right side
    2,193.28x = 3,959,435.59
  5. Step 5: Solve for x
    x = 3,959,435.59/2,193.28
  6. Step 6: Final answer
    x = 1,805.26

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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.