Home / 7,180.48-9,908.93-3,993.76

Finding the Fourth Proportional to 7,180.48, 9,908.93 and 3,993.76

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Solution

The fourth proportional to 7,180.48, 9,908.93 and 3,993.76 is: 5,511.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.48 : 9,908.93 = 3,993.76 : x
  2. Step 2: Convert to fraction form
    7,180.48/9,908.93 = 3,993.76/x
  3. Step 3: Cross multiply
    7,180.48x = 9,908.93 × 3,993.76
  4. Step 4: Simplify right side
    7,180.48x = 39,573,818.76
  5. Step 5: Solve for x
    x = 39,573,818.76/7,180.48
  6. Step 6: Final answer
    x = 5,511.31

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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.