Home / 3,681.36-5,080.29-2,188.98

Finding the Fourth Proportional to 3,681.36, 5,080.29 and 2,188.98

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Solution

The fourth proportional to 3,681.36, 5,080.29 and 2,188.98 is: 3,020.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.36 : 5,080.29 = 2,188.98 : x
  2. Step 2: Convert to fraction form
    3,681.36/5,080.29 = 2,188.98/x
  3. Step 3: Cross multiply
    3,681.36x = 5,080.29 × 2,188.98
  4. Step 4: Simplify right side
    3,681.36x = 11,120,653.20
  5. Step 5: Solve for x
    x = 11,120,653.20/3,681.36
  6. Step 6: Final answer
    x = 3,020.80

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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.