Home / 2,072.08-2,859.15-1,326.70

Finding the Fourth Proportional to 2,072.08, 2,859.15 and 1,326.70

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Solution

The fourth proportional to 2,072.08, 2,859.15 and 1,326.70 is: 1,830.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.08 : 2,859.15 = 1,326.70 : x
  2. Step 2: Convert to fraction form
    2,072.08/2,859.15 = 1,326.70/x
  3. Step 3: Cross multiply
    2,072.08x = 2,859.15 × 1,326.70
  4. Step 4: Simplify right side
    2,072.08x = 3,793,234.31
  5. Step 5: Solve for x
    x = 3,793,234.31/2,072.08
  6. Step 6: Final answer
    x = 1,830.64

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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.