Home / 1,339.92-2,021.58-1,336.32

Finding the Fourth Proportional to 1,339.92, 2,021.58 and 1,336.32

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Solution

The fourth proportional to 1,339.92, 2,021.58 and 1,336.32 is: 2,016.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339.92 : 2,021.58 = 1,336.32 : x
  2. Step 2: Convert to fraction form
    1,339.92/2,021.58 = 1,336.32/x
  3. Step 3: Cross multiply
    1,339.92x = 2,021.58 × 1,336.32
  4. Step 4: Simplify right side
    1,339.92x = 2,701,477.79
  5. Step 5: Solve for x
    x = 2,701,477.79/1,339.92
  6. Step 6: Final answer
    x = 2,016.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.