Home / 2,132.90-2,943.20-1,573.68

Finding the Fourth Proportional to 2,132.90, 2,943.20 and 1,573.68

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Solution

The fourth proportional to 2,132.90, 2,943.20 and 1,573.68 is: 2,171.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.90 : 2,943.20 = 1,573.68 : x
  2. Step 2: Convert to fraction form
    2,132.90/2,943.20 = 1,573.68/x
  3. Step 3: Cross multiply
    2,132.90x = 2,943.20 × 1,573.68
  4. Step 4: Simplify right side
    2,132.90x = 4,631,654.98
  5. Step 5: Solve for x
    x = 4,631,654.98/2,132.90
  6. Step 6: Final answer
    x = 2,171.53

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1.5x scale

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.