Home / 2,388.20-3,295.72-1,340.26

Finding the Fourth Proportional to 2,388.20, 3,295.72 and 1,340.26

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Solution

The fourth proportional to 2,388.20, 3,295.72 and 1,340.26 is: 1,849.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.20 : 3,295.72 = 1,340.26 : x
  2. Step 2: Convert to fraction form
    2,388.20/3,295.72 = 1,340.26/x
  3. Step 3: Cross multiply
    2,388.20x = 3,295.72 × 1,340.26
  4. Step 4: Simplify right side
    2,388.20x = 4,417,122.46
  5. Step 5: Solve for x
    x = 4,417,122.46/2,388.20
  6. Step 6: Final answer
    x = 1,849.56

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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.