Home / 5,105.64-7,658.58-4,777.56

Finding the Fourth Proportional to 5,105.64, 7,658.58 and 4,777.56

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Solution

The fourth proportional to 5,105.64, 7,658.58 and 4,777.56 is: 7,166.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.64 : 7,658.58 = 4,777.56 : x
  2. Step 2: Convert to fraction form
    5,105.64/7,658.58 = 4,777.56/x
  3. Step 3: Cross multiply
    5,105.64x = 7,658.58 × 4,777.56
  4. Step 4: Simplify right side
    5,105.64x = 36,589,325.46
  5. Step 5: Solve for x
    x = 36,589,325.46/5,105.64
  6. Step 6: Final answer
    x = 7,166.45

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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.