Home / 4,255.58-6,389.35-2,177.08

Finding the Fourth Proportional to 4,255.58, 6,389.35 and 2,177.08

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Solution

The fourth proportional to 4,255.58, 6,389.35 and 2,177.08 is: 3,268.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,255.58 : 6,389.35 = 2,177.08 : x
  2. Step 2: Convert to fraction form
    4,255.58/6,389.35 = 2,177.08/x
  3. Step 3: Cross multiply
    4,255.58x = 6,389.35 × 2,177.08
  4. Step 4: Simplify right side
    4,255.58x = 13,910,118.29
  5. Step 5: Solve for x
    x = 13,910,118.29/4,255.58
  6. Step 6: Final answer
    x = 3,268.68

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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.