Home / 5,758.23-7,943.07-3,986.76

Finding the Fourth Proportional to 5,758.23, 7,943.07 and 3,986.76

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Solution

The fourth proportional to 5,758.23, 7,943.07 and 3,986.76 is: 5,499.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,758.23 : 7,943.07 = 3,986.76 : x
  2. Step 2: Convert to fraction form
    5,758.23/7,943.07 = 3,986.76/x
  3. Step 3: Cross multiply
    5,758.23x = 7,943.07 × 3,986.76
  4. Step 4: Simplify right side
    5,758.23x = 31,667,113.75
  5. Step 5: Solve for x
    x = 31,667,113.75/5,758.23
  6. Step 6: Final answer
    x = 5,499.45

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Half scale
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Double scale
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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.