Home / 3,319.80-4,578.30-2,656.68

Finding the Fourth Proportional to 3,319.80, 4,578.30 and 2,656.68

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Solution

The fourth proportional to 3,319.80, 4,578.30 and 2,656.68 is: 3,663.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.80 : 4,578.30 = 2,656.68 : x
  2. Step 2: Convert to fraction form
    3,319.80/4,578.30 = 2,656.68/x
  3. Step 3: Cross multiply
    3,319.80x = 4,578.30 × 2,656.68
  4. Step 4: Simplify right side
    3,319.80x = 12,163,078.04
  5. Step 5: Solve for x
    x = 12,163,078.04/3,319.80
  6. Step 6: Final answer
    x = 3,663.80

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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.