Home / 2,686.29-3,707.13-1,507.74

Finding the Fourth Proportional to 2,686.29, 3,707.13 and 1,507.74

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Solution

The fourth proportional to 2,686.29, 3,707.13 and 1,507.74 is: 2,080.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.29 : 3,707.13 = 1,507.74 : x
  2. Step 2: Convert to fraction form
    2,686.29/3,707.13 = 1,507.74/x
  3. Step 3: Cross multiply
    2,686.29x = 3,707.13 × 1,507.74
  4. Step 4: Simplify right side
    2,686.29x = 5,589,388.19
  5. Step 5: Solve for x
    x = 5,589,388.19/2,686.29
  6. Step 6: Final answer
    x = 2,080.71

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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.