Home / 2,630.07-3,629.10-1,686.72

Finding the Fourth Proportional to 2,630.07, 3,629.10 and 1,686.72

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Solution

The fourth proportional to 2,630.07, 3,629.10 and 1,686.72 is: 2,327.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.07 : 3,629.10 = 1,686.72 : x
  2. Step 2: Convert to fraction form
    2,630.07/3,629.10 = 1,686.72/x
  3. Step 3: Cross multiply
    2,630.07x = 3,629.10 × 1,686.72
  4. Step 4: Simplify right side
    2,630.07x = 6,121,295.49
  5. Step 5: Solve for x
    x = 6,121,295.49/2,630.07
  6. Step 6: Final answer
    x = 2,327.43

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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.