Home / 5,103.12-7,040.76-2,864.76

Finding the Fourth Proportional to 5,103.12, 7,040.76 and 2,864.76

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Solution

The fourth proportional to 5,103.12, 7,040.76 and 2,864.76 is: 3,952.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.12 : 7,040.76 = 2,864.76 : x
  2. Step 2: Convert to fraction form
    5,103.12/7,040.76 = 2,864.76/x
  3. Step 3: Cross multiply
    5,103.12x = 7,040.76 × 2,864.76
  4. Step 4: Simplify right side
    5,103.12x = 20,170,087.62
  5. Step 5: Solve for x
    x = 20,170,087.62/5,103.12
  6. Step 6: Final answer
    x = 3,952.50

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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.