Home / 5,518.63-8,276.19-1,820.17

Finding the Fourth Proportional to 5,518.63, 8,276.19 and 1,820.17

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Solution

The fourth proportional to 5,518.63, 8,276.19 and 1,820.17 is: 2,729.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.63 : 8,276.19 = 1,820.17 : x
  2. Step 2: Convert to fraction form
    5,518.63/8,276.19 = 1,820.17/x
  3. Step 3: Cross multiply
    5,518.63x = 8,276.19 × 1,820.17
  4. Step 4: Simplify right side
    5,518.63x = 15,064,072.75
  5. Step 5: Solve for x
    x = 15,064,072.75/5,518.63
  6. Step 6: Final answer
    x = 2,729.68

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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.