Home / 5,145.17-7,100.24-2,906.89

Finding the Fourth Proportional to 5,145.17, 7,100.24 and 2,906.89

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Solution

The fourth proportional to 5,145.17, 7,100.24 and 2,906.89 is: 4,011.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.17 : 7,100.24 = 2,906.89 : x
  2. Step 2: Convert to fraction form
    5,145.17/7,100.24 = 2,906.89/x
  3. Step 3: Cross multiply
    5,145.17x = 7,100.24 × 2,906.89
  4. Step 4: Simplify right side
    5,145.17x = 20,639,566.62
  5. Step 5: Solve for x
    x = 20,639,566.62/5,145.17
  6. Step 6: Final answer
    x = 4,011.45

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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.