Home / 6,780.78-10,169.80-1,850.01

Finding the Fourth Proportional to 6,780.78, 10,169.80 and 1,850.01

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Solution

The fourth proportional to 6,780.78, 10,169.80 and 1,850.01 is: 2,774.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.78 : 10,169.80 = 1,850.01 : x
  2. Step 2: Convert to fraction form
    6,780.78/10,169.80 = 1,850.01/x
  3. Step 3: Cross multiply
    6,780.78x = 10,169.80 × 1,850.01
  4. Step 4: Simplify right side
    6,780.78x = 18,814,199.34
  5. Step 5: Solve for x
    x = 18,814,199.34/6,780.78
  6. Step 6: Final answer
    x = 2,774.64

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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.