Home / 2,620.13-3,614.24-1,688.63

Finding the Fourth Proportional to 2,620.13, 3,614.24 and 1,688.63

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Solution

The fourth proportional to 2,620.13, 3,614.24 and 1,688.63 is: 2,329.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.13 : 3,614.24 = 1,688.63 : x
  2. Step 2: Convert to fraction form
    2,620.13/3,614.24 = 1,688.63/x
  3. Step 3: Cross multiply
    2,620.13x = 3,614.24 × 1,688.63
  4. Step 4: Simplify right side
    2,620.13x = 6,103,087.58
  5. Step 5: Solve for x
    x = 6,103,087.58/2,620.13
  6. Step 6: Final answer
    x = 2,329.31

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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.