Home / 4,079.80-5,629.98-2,681.56

Finding the Fourth Proportional to 4,079.80, 5,629.98 and 2,681.56

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Solution

The fourth proportional to 4,079.80, 5,629.98 and 2,681.56 is: 3,700.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.80 : 5,629.98 = 2,681.56 : x
  2. Step 2: Convert to fraction form
    4,079.80/5,629.98 = 2,681.56/x
  3. Step 3: Cross multiply
    4,079.80x = 5,629.98 × 2,681.56
  4. Step 4: Simplify right side
    4,079.80x = 15,097,129.17
  5. Step 5: Solve for x
    x = 15,097,129.17/4,079.80
  6. Step 6: Final answer
    x = 3,700.46

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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.