Home / 2,111.02-3,166.68-650.20

Finding the Fourth Proportional to 2,111.02, 3,166.68 and 650.20

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Solution

The fourth proportional to 2,111.02, 3,166.68 and 650.20 is: 975.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111.02 : 3,166.68 = 650.20 : x
  2. Step 2: Convert to fraction form
    2,111.02/3,166.68 = 650.20/x
  3. Step 3: Cross multiply
    2,111.02x = 3,166.68 × 650.20
  4. Step 4: Simplify right side
    2,111.02x = 2,058,975.34
  5. Step 5: Solve for x
    x = 2,058,975.34/2,111.02
  6. Step 6: Final answer
    x = 975.35

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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.