Home / 5,518.61-8,277.72-1,820.75

Finding the Fourth Proportional to 5,518.61, 8,277.72 and 1,820.75

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Solution

The fourth proportional to 5,518.61, 8,277.72 and 1,820.75 is: 2,731.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.61 : 8,277.72 = 1,820.75 : x
  2. Step 2: Convert to fraction form
    5,518.61/8,277.72 = 1,820.75/x
  3. Step 3: Cross multiply
    5,518.61x = 8,277.72 × 1,820.75
  4. Step 4: Simplify right side
    5,518.61x = 15,071,617.30
  5. Step 5: Solve for x
    x = 15,071,617.30/5,518.61
  6. Step 6: Final answer
    x = 2,731.06

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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.