Home / 2,132.20-2,941.61-1,335.20

Finding the Fourth Proportional to 2,132.20, 2,941.61 and 1,335.20

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Solution

The fourth proportional to 2,132.20, 2,941.61 and 1,335.20 is: 1,842.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.20 : 2,941.61 = 1,335.20 : x
  2. Step 2: Convert to fraction form
    2,132.20/2,941.61 = 1,335.20/x
  3. Step 3: Cross multiply
    2,132.20x = 2,941.61 × 1,335.20
  4. Step 4: Simplify right side
    2,132.20x = 3,927,631.00
  5. Step 5: Solve for x
    x = 3,927,631.00/2,132.20
  6. Step 6: Final answer
    x = 1,842.06

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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.