Home / 2,132.85-2,940.60-1,563.90

Finding the Fourth Proportional to 2,132.85, 2,940.60 and 1,563.90

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Solution

The fourth proportional to 2,132.85, 2,940.60 and 1,563.90 is: 2,156.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.85 : 2,940.60 = 1,563.90 : x
  2. Step 2: Convert to fraction form
    2,132.85/2,940.60 = 1,563.90/x
  3. Step 3: Cross multiply
    2,132.85x = 2,940.60 × 1,563.90
  4. Step 4: Simplify right side
    2,132.85x = 4,598,804.34
  5. Step 5: Solve for x
    x = 4,598,804.34/2,132.85
  6. Step 6: Final answer
    x = 2,156.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.