Home / 3,970.06-5,479.67-2,377.64

Finding the Fourth Proportional to 3,970.06, 5,479.67 and 2,377.64

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Solution

The fourth proportional to 3,970.06, 5,479.67 and 2,377.64 is: 3,281.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.06 : 5,479.67 = 2,377.64 : x
  2. Step 2: Convert to fraction form
    3,970.06/5,479.67 = 2,377.64/x
  3. Step 3: Cross multiply
    3,970.06x = 5,479.67 × 2,377.64
  4. Step 4: Simplify right side
    3,970.06x = 13,028,682.58
  5. Step 5: Solve for x
    x = 13,028,682.58/3,970.06
  6. Step 6: Final answer
    x = 3,281.73

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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.