Home / 2,686.10-3,706.79-1,507.14

Finding the Fourth Proportional to 2,686.10, 3,706.79 and 1,507.14

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Solution

The fourth proportional to 2,686.10, 3,706.79 and 1,507.14 is: 2,079.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.10 : 3,706.79 = 1,507.14 : x
  2. Step 2: Convert to fraction form
    2,686.10/3,706.79 = 1,507.14/x
  3. Step 3: Cross multiply
    2,686.10x = 3,706.79 × 1,507.14
  4. Step 4: Simplify right side
    2,686.10x = 5,586,643.94
  5. Step 5: Solve for x
    x = 5,586,643.94/2,686.10
  6. Step 6: Final answer
    x = 2,079.84

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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.