Home / 1,680.90-2,517.44-1,622.52

Finding the Fourth Proportional to 1,680.90, 2,517.44 and 1,622.52

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Solution

The fourth proportional to 1,680.90, 2,517.44 and 1,622.52 is: 2,430.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680.90 : 2,517.44 = 1,622.52 : x
  2. Step 2: Convert to fraction form
    1,680.90/2,517.44 = 1,622.52/x
  3. Step 3: Cross multiply
    1,680.90x = 2,517.44 × 1,622.52
  4. Step 4: Simplify right side
    1,680.90x = 4,084,596.75
  5. Step 5: Solve for x
    x = 4,084,596.75/1,680.90
  6. Step 6: Final answer
    x = 2,430.01

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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.