Home / 5,278.69-7,281.41-3,486.18

Finding the Fourth Proportional to 5,278.69, 7,281.41 and 3,486.18

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Solution

The fourth proportional to 5,278.69, 7,281.41 and 3,486.18 is: 4,808.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.69 : 7,281.41 = 3,486.18 : x
  2. Step 2: Convert to fraction form
    5,278.69/7,281.41 = 3,486.18/x
  3. Step 3: Cross multiply
    5,278.69x = 7,281.41 × 3,486.18
  4. Step 4: Simplify right side
    5,278.69x = 25,384,305.91
  5. Step 5: Solve for x
    x = 25,384,305.91/5,278.69
  6. Step 6: Final answer
    x = 4,808.83

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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.