Home / 2,982.48-4,115.39-1,656.20

Finding the Fourth Proportional to 2,982.48, 4,115.39 and 1,656.20

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Solution

The fourth proportional to 2,982.48, 4,115.39 and 1,656.20 is: 2,285.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.48 : 4,115.39 = 1,656.20 : x
  2. Step 2: Convert to fraction form
    2,982.48/4,115.39 = 1,656.20/x
  3. Step 3: Cross multiply
    2,982.48x = 4,115.39 × 1,656.20
  4. Step 4: Simplify right side
    2,982.48x = 6,815,880.06
  5. Step 5: Solve for x
    x = 6,815,880.06/2,982.48
  6. Step 6: Final answer
    x = 2,285.31

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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.