Home / 2,319.40-3,200.98-1,324.68

Finding the Fourth Proportional to 2,319.40, 3,200.98 and 1,324.68

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Solution

The fourth proportional to 2,319.40, 3,200.98 and 1,324.68 is: 1,828.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.40 : 3,200.98 = 1,324.68 : x
  2. Step 2: Convert to fraction form
    2,319.40/3,200.98 = 1,324.68/x
  3. Step 3: Cross multiply
    2,319.40x = 3,200.98 × 1,324.68
  4. Step 4: Simplify right side
    2,319.40x = 4,240,274.19
  5. Step 5: Solve for x
    x = 4,240,274.19/2,319.40
  6. Step 6: Final answer
    x = 1,828.18

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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.