Home / 5,279.37-7,282.36-3,486.87

Finding the Fourth Proportional to 5,279.37, 7,282.36 and 3,486.87

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Solution

The fourth proportional to 5,279.37, 7,282.36 and 3,486.87 is: 4,809.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.37 : 7,282.36 = 3,486.87 : x
  2. Step 2: Convert to fraction form
    5,279.37/7,282.36 = 3,486.87/x
  3. Step 3: Cross multiply
    5,279.37x = 7,282.36 × 3,486.87
  4. Step 4: Simplify right side
    5,279.37x = 25,392,642.61
  5. Step 5: Solve for x
    x = 25,392,642.61/5,279.37
  6. Step 6: Final answer
    x = 4,809.79

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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.