Home / 3,605.60-4,976.70-2,279.72

Finding the Fourth Proportional to 3,605.60, 4,976.70 and 2,279.72

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Solution

The fourth proportional to 3,605.60, 4,976.70 and 2,279.72 is: 3,146.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.60 : 4,976.70 = 2,279.72 : x
  2. Step 2: Convert to fraction form
    3,605.60/4,976.70 = 2,279.72/x
  3. Step 3: Cross multiply
    3,605.60x = 4,976.70 × 2,279.72
  4. Step 4: Simplify right side
    3,605.60x = 11,345,482.52
  5. Step 5: Solve for x
    x = 11,345,482.52/3,605.60
  6. Step 6: Final answer
    x = 3,146.63

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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.