Home / 3,640.32-5,023.74-2,068.64

Finding the Fourth Proportional to 3,640.32, 5,023.74 and 2,068.64

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Solution

The fourth proportional to 3,640.32, 5,023.74 and 2,068.64 is: 2,854.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.32 : 5,023.74 = 2,068.64 : x
  2. Step 2: Convert to fraction form
    3,640.32/5,023.74 = 2,068.64/x
  3. Step 3: Cross multiply
    3,640.32x = 5,023.74 × 2,068.64
  4. Step 4: Simplify right side
    3,640.32x = 10,392,309.51
  5. Step 5: Solve for x
    x = 10,392,309.51/3,640.32
  6. Step 6: Final answer
    x = 2,854.78

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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.