Home / 7,188.47-10,778.93-4,227.82

Finding the Fourth Proportional to 7,188.47, 10,778.93 and 4,227.82

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Solution

The fourth proportional to 7,188.47, 10,778.93 and 4,227.82 is: 6,339.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188.47 : 10,778.93 = 4,227.82 : x
  2. Step 2: Convert to fraction form
    7,188.47/10,778.93 = 4,227.82/x
  3. Step 3: Cross multiply
    7,188.47x = 10,778.93 × 4,227.82
  4. Step 4: Simplify right side
    7,188.47x = 45,571,341.22
  5. Step 5: Solve for x
    x = 45,571,341.22/7,188.47
  6. Step 6: Final answer
    x = 6,339.50

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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.