Home / 2,388.76-3,296.64-1,340.98

Finding the Fourth Proportional to 2,388.76, 3,296.64 and 1,340.98

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Solution

The fourth proportional to 2,388.76, 3,296.64 and 1,340.98 is: 1,850.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.76 : 3,296.64 = 1,340.98 : x
  2. Step 2: Convert to fraction form
    2,388.76/3,296.64 = 1,340.98/x
  3. Step 3: Cross multiply
    2,388.76x = 3,296.64 × 1,340.98
  4. Step 4: Simplify right side
    2,388.76x = 4,420,728.31
  5. Step 5: Solve for x
    x = 4,420,728.31/2,388.76
  6. Step 6: Final answer
    x = 1,850.64

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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.