Home / 3,260.72-4,498.56-2,142.28

Finding the Fourth Proportional to 3,260.72, 4,498.56 and 2,142.28

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Solution

The fourth proportional to 3,260.72, 4,498.56 and 2,142.28 is: 2,955.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.72 : 4,498.56 = 2,142.28 : x
  2. Step 2: Convert to fraction form
    3,260.72/4,498.56 = 2,142.28/x
  3. Step 3: Cross multiply
    3,260.72x = 4,498.56 × 2,142.28
  4. Step 4: Simplify right side
    3,260.72x = 9,637,175.12
  5. Step 5: Solve for x
    x = 9,637,175.12/3,260.72
  6. Step 6: Final answer
    x = 2,955.54

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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.