Home / 5,789-7,995.34-3,922.76

Finding the Fourth Proportional to 5,789, 7,995.34 and 3,922.76

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Solution

The fourth proportional to 5,789, 7,995.34 and 3,922.76 is: 5,417.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,789 : 7,995.34 = 3,922.76 : x
  2. Step 2: Convert to fraction form
    5,789/7,995.34 = 3,922.76/x
  3. Step 3: Cross multiply
    5,789x = 7,995.34 × 3,922.76
  4. Step 4: Simplify right side
    5,789x = 31,363,799.94
  5. Step 5: Solve for x
    x = 31,363,799.94/5,789
  6. Step 6: Final answer
    x = 5,417.83

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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.