Home / 2,120.30-2,925.96-1,176.02

Finding the Fourth Proportional to 2,120.30, 2,925.96 and 1,176.02

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Solution

The fourth proportional to 2,120.30, 2,925.96 and 1,176.02 is: 1,622.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.30 : 2,925.96 = 1,176.02 : x
  2. Step 2: Convert to fraction form
    2,120.30/2,925.96 = 1,176.02/x
  3. Step 3: Cross multiply
    2,120.30x = 2,925.96 × 1,176.02
  4. Step 4: Simplify right side
    2,120.30x = 3,440,987.48
  5. Step 5: Solve for x
    x = 3,440,987.48/2,120.30
  6. Step 6: Final answer
    x = 1,622.88

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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.