Home / 2,628.39-3,627.15-1,449.51

Finding the Fourth Proportional to 2,628.39, 3,627.15 and 1,449.51

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Solution

The fourth proportional to 2,628.39, 3,627.15 and 1,449.51 is: 2,000.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.39 : 3,627.15 = 1,449.51 : x
  2. Step 2: Convert to fraction form
    2,628.39/3,627.15 = 1,449.51/x
  3. Step 3: Cross multiply
    2,628.39x = 3,627.15 × 1,449.51
  4. Step 4: Simplify right side
    2,628.39x = 5,257,590.20
  5. Step 5: Solve for x
    x = 5,257,590.20/2,628.39
  6. Step 6: Final answer
    x = 2,000.31

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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.