Home / 3,205.08-4,423-1,788.88

Finding the Fourth Proportional to 3,205.08, 4,423 and 1,788.88

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Solution

The fourth proportional to 3,205.08, 4,423 and 1,788.88 is: 2,468.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.08 : 4,423 = 1,788.88 : x
  2. Step 2: Convert to fraction form
    3,205.08/4,423 = 1,788.88/x
  3. Step 3: Cross multiply
    3,205.08x = 4,423 × 1,788.88
  4. Step 4: Simplify right side
    3,205.08x = 7,912,216.24
  5. Step 5: Solve for x
    x = 7,912,216.24/3,205.08
  6. Step 6: Final answer
    x = 2,468.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.