Home / 5,279.12-7,282.01-3,486.62

Finding the Fourth Proportional to 5,279.12, 7,282.01 and 3,486.62

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Solution

The fourth proportional to 5,279.12, 7,282.01 and 3,486.62 is: 4,809.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.12 : 7,282.01 = 3,486.62 : x
  2. Step 2: Convert to fraction form
    5,279.12/7,282.01 = 3,486.62/x
  3. Step 3: Cross multiply
    5,279.12x = 7,282.01 × 3,486.62
  4. Step 4: Simplify right side
    5,279.12x = 25,389,574.01
  5. Step 5: Solve for x
    x = 25,389,574.01/5,279.12
  6. Step 6: Final answer
    x = 4,809.43

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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.