Home / 2,479.87-3,422.11-1,485.70

Finding the Fourth Proportional to 2,479.87, 3,422.11 and 1,485.70

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Solution

The fourth proportional to 2,479.87, 3,422.11 and 1,485.70 is: 2,050.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.87 : 3,422.11 = 1,485.70 : x
  2. Step 2: Convert to fraction form
    2,479.87/3,422.11 = 1,485.70/x
  3. Step 3: Cross multiply
    2,479.87x = 3,422.11 × 1,485.70
  4. Step 4: Simplify right side
    2,479.87x = 5,084,228.83
  5. Step 5: Solve for x
    x = 5,084,228.83/2,479.87
  6. Step 6: Final answer
    x = 2,050.20

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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.