Home / 3,390.03-4,680.54-2,272.64

Finding the Fourth Proportional to 3,390.03, 4,680.54 and 2,272.64

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Solution

The fourth proportional to 3,390.03, 4,680.54 and 2,272.64 is: 3,137.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.03 : 4,680.54 = 2,272.64 : x
  2. Step 2: Convert to fraction form
    3,390.03/4,680.54 = 2,272.64/x
  3. Step 3: Cross multiply
    3,390.03x = 4,680.54 × 2,272.64
  4. Step 4: Simplify right side
    3,390.03x = 10,637,159.02
  5. Step 5: Solve for x
    x = 10,637,159.02/3,390.03
  6. Step 6: Final answer
    x = 3,137.78

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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.