Home / 6,859.55-10,290.78-2,178.93

Finding the Fourth Proportional to 6,859.55, 10,290.78 and 2,178.93

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Solution

The fourth proportional to 6,859.55, 10,290.78 and 2,178.93 is: 3,268.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,859.55 : 10,290.78 = 2,178.93 : x
  2. Step 2: Convert to fraction form
    6,859.55/10,290.78 = 2,178.93/x
  3. Step 3: Cross multiply
    6,859.55x = 10,290.78 × 2,178.93
  4. Step 4: Simplify right side
    6,859.55x = 22,422,927.86
  5. Step 5: Solve for x
    x = 22,422,927.86/6,859.55
  6. Step 6: Final answer
    x = 3,268.86

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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.