Home / 5,479.90-8,210.40-2,552.20

Finding the Fourth Proportional to 5,479.90, 8,210.40 and 2,552.20

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Solution

The fourth proportional to 5,479.90, 8,210.40 and 2,552.20 is: 3,823.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.90 : 8,210.40 = 2,552.20 : x
  2. Step 2: Convert to fraction form
    5,479.90/8,210.40 = 2,552.20/x
  3. Step 3: Cross multiply
    5,479.90x = 8,210.40 × 2,552.20
  4. Step 4: Simplify right side
    5,479.90x = 20,954,582.88
  5. Step 5: Solve for x
    x = 20,954,582.88/5,479.90
  6. Step 6: Final answer
    x = 3,823.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.