Home / 5,519.40-8,276.90-1,820.60

Finding the Fourth Proportional to 5,519.40, 8,276.90 and 1,820.60

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Solution

The fourth proportional to 5,519.40, 8,276.90 and 1,820.60 is: 2,730.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.40 : 8,276.90 = 1,820.60 : x
  2. Step 2: Convert to fraction form
    5,519.40/8,276.90 = 1,820.60/x
  3. Step 3: Cross multiply
    5,519.40x = 8,276.90 × 1,820.60
  4. Step 4: Simplify right side
    5,519.40x = 15,068,924.14
  5. Step 5: Solve for x
    x = 15,068,924.14/5,519.40
  6. Step 6: Final answer
    x = 2,730.17

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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.