Home / 6,920.93-10,380.78-1,726.80

Finding the Fourth Proportional to 6,920.93, 10,380.78 and 1,726.80

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Solution

The fourth proportional to 6,920.93, 10,380.78 and 1,726.80 is: 2,590.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,920.93 : 10,380.78 = 1,726.80 : x
  2. Step 2: Convert to fraction form
    6,920.93/10,380.78 = 1,726.80/x
  3. Step 3: Cross multiply
    6,920.93x = 10,380.78 × 1,726.80
  4. Step 4: Simplify right side
    6,920.93x = 17,925,530.90
  5. Step 5: Solve for x
    x = 17,925,530.90/6,920.93
  6. Step 6: Final answer
    x = 2,590.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.