Home / 3,606.19-4,977.32-2,279.05

Finding the Fourth Proportional to 3,606.19, 4,977.32 and 2,279.05

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Solution

The fourth proportional to 3,606.19, 4,977.32 and 2,279.05 is: 3,145.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.19 : 4,977.32 = 2,279.05 : x
  2. Step 2: Convert to fraction form
    3,606.19/4,977.32 = 2,279.05/x
  3. Step 3: Cross multiply
    3,606.19x = 4,977.32 × 2,279.05
  4. Step 4: Simplify right side
    3,606.19x = 11,343,561.15
  5. Step 5: Solve for x
    x = 11,343,561.15/3,606.19
  6. Step 6: Final answer
    x = 3,145.58

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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.