Home / 5,518.68-8,277.81-1,820.80

Finding the Fourth Proportional to 5,518.68, 8,277.81 and 1,820.80

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Solution

The fourth proportional to 5,518.68, 8,277.81 and 1,820.80 is: 2,731.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.68 : 8,277.81 = 1,820.80 : x
  2. Step 2: Convert to fraction form
    5,518.68/8,277.81 = 1,820.80/x
  3. Step 3: Cross multiply
    5,518.68x = 8,277.81 × 1,820.80
  4. Step 4: Simplify right side
    5,518.68x = 15,072,236.45
  5. Step 5: Solve for x
    x = 15,072,236.45/5,518.68
  6. Step 6: Final answer
    x = 2,731.13

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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.