Home / 2,319.36-3,200.99-1,324.78

Finding the Fourth Proportional to 2,319.36, 3,200.99 and 1,324.78

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Solution

The fourth proportional to 2,319.36, 3,200.99 and 1,324.78 is: 1,828.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.36 : 3,200.99 = 1,324.78 : x
  2. Step 2: Convert to fraction form
    2,319.36/3,200.99 = 1,324.78/x
  3. Step 3: Cross multiply
    2,319.36x = 3,200.99 × 1,324.78
  4. Step 4: Simplify right side
    2,319.36x = 4,240,604.91
  5. Step 5: Solve for x
    x = 4,240,604.91/2,319.36
  6. Step 6: Final answer
    x = 1,828.35

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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.