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Finding the Fourth Proportional to 7,777.42, 10,733.10 and 4,240.74

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Solution

The fourth proportional to 7,777.42, 10,733.10 and 4,240.74 is: 5,852.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777.42 : 10,733.10 = 4,240.74 : x
  2. Step 2: Convert to fraction form
    7,777.42/10,733.10 = 4,240.74/x
  3. Step 3: Cross multiply
    7,777.42x = 10,733.10 × 4,240.74
  4. Step 4: Simplify right side
    7,777.42x = 45,516,286.49
  5. Step 5: Solve for x
    x = 45,516,286.49/7,777.42
  6. Step 6: Final answer
    x = 5,852.36

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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.