Home / 2,686.57-3,707.44-1,507.63

Finding the Fourth Proportional to 2,686.57, 3,707.44 and 1,507.63

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Solution

The fourth proportional to 2,686.57, 3,707.44 and 1,507.63 is: 2,080.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.57 : 3,707.44 = 1,507.63 : x
  2. Step 2: Convert to fraction form
    2,686.57/3,707.44 = 1,507.63/x
  3. Step 3: Cross multiply
    2,686.57x = 3,707.44 × 1,507.63
  4. Step 4: Simplify right side
    2,686.57x = 5,589,441.68
  5. Step 5: Solve for x
    x = 5,589,441.68/2,686.57
  6. Step 6: Final answer
    x = 2,080.51

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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.