Home / 2,785.83-4,173.08-1,808.97

Finding the Fourth Proportional to 2,785.83, 4,173.08 and 1,808.97

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Solution

The fourth proportional to 2,785.83, 4,173.08 and 1,808.97 is: 2,709.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.83 : 4,173.08 = 1,808.97 : x
  2. Step 2: Convert to fraction form
    2,785.83/4,173.08 = 1,808.97/x
  3. Step 3: Cross multiply
    2,785.83x = 4,173.08 × 1,808.97
  4. Step 4: Simplify right side
    2,785.83x = 7,548,967.48
  5. Step 5: Solve for x
    x = 7,548,967.48/2,785.83
  6. Step 6: Final answer
    x = 2,709.77

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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.