Home / 6,839.78-10,259.62-1,909.44

Finding the Fourth Proportional to 6,839.78, 10,259.62 and 1,909.44

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Solution

The fourth proportional to 6,839.78, 10,259.62 and 1,909.44 is: 2,864.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,839.78 : 10,259.62 = 1,909.44 : x
  2. Step 2: Convert to fraction form
    6,839.78/10,259.62 = 1,909.44/x
  3. Step 3: Cross multiply
    6,839.78x = 10,259.62 × 1,909.44
  4. Step 4: Simplify right side
    6,839.78x = 19,590,128.81
  5. Step 5: Solve for x
    x = 19,590,128.81/6,839.78
  6. Step 6: Final answer
    x = 2,864.15

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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.