Home / 2,686.20-3,707.14-1,507.34

Finding the Fourth Proportional to 2,686.20, 3,707.14 and 1,507.34

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Solution

The fourth proportional to 2,686.20, 3,707.14 and 1,507.34 is: 2,080.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.20 : 3,707.14 = 1,507.34 : x
  2. Step 2: Convert to fraction form
    2,686.20/3,707.14 = 1,507.34/x
  3. Step 3: Cross multiply
    2,686.20x = 3,707.14 × 1,507.34
  4. Step 4: Simplify right side
    2,686.20x = 5,587,920.41
  5. Step 5: Solve for x
    x = 5,587,920.41/2,686.20
  6. Step 6: Final answer
    x = 2,080.23

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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.