Home / 2,388.36-3,295.92-1,340.40

Finding the Fourth Proportional to 2,388.36, 3,295.92 and 1,340.40

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Solution

The fourth proportional to 2,388.36, 3,295.92 and 1,340.40 is: 1,849.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.36 : 3,295.92 = 1,340.40 : x
  2. Step 2: Convert to fraction form
    2,388.36/3,295.92 = 1,340.40/x
  3. Step 3: Cross multiply
    2,388.36x = 3,295.92 × 1,340.40
  4. Step 4: Simplify right side
    2,388.36x = 4,417,851.17
  5. Step 5: Solve for x
    x = 4,417,851.17/2,388.36
  6. Step 6: Final answer
    x = 1,849.74

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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.