Home / 5,108.72-7,628.46-4,056.92

Finding the Fourth Proportional to 5,108.72, 7,628.46 and 4,056.92

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Solution

The fourth proportional to 5,108.72, 7,628.46 and 4,056.92 is: 6,057.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.72 : 7,628.46 = 4,056.92 : x
  2. Step 2: Convert to fraction form
    5,108.72/7,628.46 = 4,056.92/x
  3. Step 3: Cross multiply
    5,108.72x = 7,628.46 × 4,056.92
  4. Step 4: Simplify right side
    5,108.72x = 30,948,051.94
  5. Step 5: Solve for x
    x = 30,948,051.94/5,108.72
  6. Step 6: Final answer
    x = 6,057.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.