Home / 3,763.64-5,638.16-2,115.16

Finding the Fourth Proportional to 3,763.64, 5,638.16 and 2,115.16

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Solution

The fourth proportional to 3,763.64, 5,638.16 and 2,115.16 is: 3,168.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,763.64 : 5,638.16 = 2,115.16 : x
  2. Step 2: Convert to fraction form
    3,763.64/5,638.16 = 2,115.16/x
  3. Step 3: Cross multiply
    3,763.64x = 5,638.16 × 2,115.16
  4. Step 4: Simplify right side
    3,763.64x = 11,925,610.51
  5. Step 5: Solve for x
    x = 11,925,610.51/3,763.64
  6. Step 6: Final answer
    x = 3,168.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.