Home / 4,422.80-6,623.40-2,111.60

Finding the Fourth Proportional to 4,422.80, 6,623.40 and 2,111.60

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Solution

The fourth proportional to 4,422.80, 6,623.40 and 2,111.60 is: 3,162.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,422.80 : 6,623.40 = 2,111.60 : x
  2. Step 2: Convert to fraction form
    4,422.80/6,623.40 = 2,111.60/x
  3. Step 3: Cross multiply
    4,422.80x = 6,623.40 × 2,111.60
  4. Step 4: Simplify right side
    4,422.80x = 13,985,971.44
  5. Step 5: Solve for x
    x = 13,985,971.44/4,422.80
  6. Step 6: Final answer
    x = 3,162.24

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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.