Home / 5,378.66-8,070.75-2,218.44

Finding the Fourth Proportional to 5,378.66, 8,070.75 and 2,218.44

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Solution

The fourth proportional to 5,378.66, 8,070.75 and 2,218.44 is: 3,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.66 : 8,070.75 = 2,218.44 : x
  2. Step 2: Convert to fraction form
    5,378.66/8,070.75 = 2,218.44/x
  3. Step 3: Cross multiply
    5,378.66x = 8,070.75 × 2,218.44
  4. Step 4: Simplify right side
    5,378.66x = 17,904,474.63
  5. Step 5: Solve for x
    x = 17,904,474.63/5,378.66
  6. Step 6: Final answer
    x = 3,328.80

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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.