Home / 5,380.77-8,071.62-1,485.18

Finding the Fourth Proportional to 5,380.77, 8,071.62 and 1,485.18

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Solution

The fourth proportional to 5,380.77, 8,071.62 and 1,485.18 is: 2,227.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.77 : 8,071.62 = 1,485.18 : x
  2. Step 2: Convert to fraction form
    5,380.77/8,071.62 = 1,485.18/x
  3. Step 3: Cross multiply
    5,380.77x = 8,071.62 × 1,485.18
  4. Step 4: Simplify right side
    5,380.77x = 11,987,764.52
  5. Step 5: Solve for x
    x = 11,987,764.52/5,380.77
  6. Step 6: Final answer
    x = 2,227.89

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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.