Home / 4,136.78-5,708.40-2,642.06

Finding the Fourth Proportional to 4,136.78, 5,708.40 and 2,642.06

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Solution

The fourth proportional to 4,136.78, 5,708.40 and 2,642.06 is: 3,645.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,136.78 : 5,708.40 = 2,642.06 : x
  2. Step 2: Convert to fraction form
    4,136.78/5,708.40 = 2,642.06/x
  3. Step 3: Cross multiply
    4,136.78x = 5,708.40 × 2,642.06
  4. Step 4: Simplify right side
    4,136.78x = 15,081,935.30
  5. Step 5: Solve for x
    x = 15,081,935.30/4,136.78
  6. Step 6: Final answer
    x = 3,645.82

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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.