Home / 5,758.30-7,947.15-3,240.51

Finding the Fourth Proportional to 5,758.30, 7,947.15 and 3,240.51

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Solution

The fourth proportional to 5,758.30, 7,947.15 and 3,240.51 is: 4,472.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,758.30 : 7,947.15 = 3,240.51 : x
  2. Step 2: Convert to fraction form
    5,758.30/7,947.15 = 3,240.51/x
  3. Step 3: Cross multiply
    5,758.30x = 7,947.15 × 3,240.51
  4. Step 4: Simplify right side
    5,758.30x = 25,752,819.05
  5. Step 5: Solve for x
    x = 25,752,819.05/5,758.30
  6. Step 6: Final answer
    x = 4,472.30

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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.