Home / 7,182.10-10,773.39-1,987.54

Finding the Fourth Proportional to 7,182.10, 10,773.39 and 1,987.54

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Solution

The fourth proportional to 7,182.10, 10,773.39 and 1,987.54 is: 2,981.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.10 : 10,773.39 = 1,987.54 : x
  2. Step 2: Convert to fraction form
    7,182.10/10,773.39 = 1,987.54/x
  3. Step 3: Cross multiply
    7,182.10x = 10,773.39 × 1,987.54
  4. Step 4: Simplify right side
    7,182.10x = 21,412,543.56
  5. Step 5: Solve for x
    x = 21,412,543.56/7,182.10
  6. Step 6: Final answer
    x = 2,981.38

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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.