Home / 2,173.08-3,255.18-1,339.02

Finding the Fourth Proportional to 2,173.08, 3,255.18 and 1,339.02

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Solution

The fourth proportional to 2,173.08, 3,255.18 and 1,339.02 is: 2,005.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.08 : 3,255.18 = 1,339.02 : x
  2. Step 2: Convert to fraction form
    2,173.08/3,255.18 = 1,339.02/x
  3. Step 3: Cross multiply
    2,173.08x = 3,255.18 × 1,339.02
  4. Step 4: Simplify right side
    2,173.08x = 4,358,751.12
  5. Step 5: Solve for x
    x = 4,358,751.12/2,173.08
  6. Step 6: Final answer
    x = 2,005.79

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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.