Home / 7,182.56-10,773.72-1,988.36

Finding the Fourth Proportional to 7,182.56, 10,773.72 and 1,988.36

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Solution

The fourth proportional to 7,182.56, 10,773.72 and 1,988.36 is: 2,982.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.56 : 10,773.72 = 1,988.36 : x
  2. Step 2: Convert to fraction form
    7,182.56/10,773.72 = 1,988.36/x
  3. Step 3: Cross multiply
    7,182.56x = 10,773.72 × 1,988.36
  4. Step 4: Simplify right side
    7,182.56x = 21,422,033.90
  5. Step 5: Solve for x
    x = 21,422,033.90/7,182.56
  6. Step 6: Final answer
    x = 2,982.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.