Home / 1,384.44-1,909.60-1,336.92

Finding the Fourth Proportional to 1,384.44, 1,909.60 and 1,336.92

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Solution

The fourth proportional to 1,384.44, 1,909.60 and 1,336.92 is: 1,844.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384.44 : 1,909.60 = 1,336.92 : x
  2. Step 2: Convert to fraction form
    1,384.44/1,909.60 = 1,336.92/x
  3. Step 3: Cross multiply
    1,384.44x = 1,909.60 × 1,336.92
  4. Step 4: Simplify right side
    1,384.44x = 2,552,982.43
  5. Step 5: Solve for x
    x = 2,552,982.43/1,384.44
  6. Step 6: Final answer
    x = 1,844.05

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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.