Home / 2,979.64-4,470-1,335.88

Finding the Fourth Proportional to 2,979.64, 4,470 and 1,335.88

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Solution

The fourth proportional to 2,979.64, 4,470 and 1,335.88 is: 2,004.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.64 : 4,470 = 1,335.88 : x
  2. Step 2: Convert to fraction form
    2,979.64/4,470 = 1,335.88/x
  3. Step 3: Cross multiply
    2,979.64x = 4,470 × 1,335.88
  4. Step 4: Simplify right side
    2,979.64x = 5,971,383.60
  5. Step 5: Solve for x
    x = 5,971,383.60/2,979.64
  6. Step 6: Final answer
    x = 2,004.06

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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.