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Finding the Fourth Proportional to 7,777.69, 10,733.21 and 4,240.92

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Solution

The fourth proportional to 7,777.69, 10,733.21 and 4,240.92 is: 5,852.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777.69 : 10,733.21 = 4,240.92 : x
  2. Step 2: Convert to fraction form
    7,777.69/10,733.21 = 4,240.92/x
  3. Step 3: Cross multiply
    7,777.69x = 10,733.21 × 4,240.92
  4. Step 4: Simplify right side
    7,777.69x = 45,518,719.90
  5. Step 5: Solve for x
    x = 45,518,719.90/7,777.69
  6. Step 6: Final answer
    x = 5,852.47

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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.