Home / 2,384.20-3,290.16-1,336.30

Finding the Fourth Proportional to 2,384.20, 3,290.16 and 1,336.30

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Solution

The fourth proportional to 2,384.20, 3,290.16 and 1,336.30 is: 1,844.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,384.20 : 3,290.16 = 1,336.30 : x
  2. Step 2: Convert to fraction form
    2,384.20/3,290.16 = 1,336.30/x
  3. Step 3: Cross multiply
    2,384.20x = 3,290.16 × 1,336.30
  4. Step 4: Simplify right side
    2,384.20x = 4,396,640.81
  5. Step 5: Solve for x
    x = 4,396,640.81/2,384.20
  6. Step 6: Final answer
    x = 1,844.07

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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.