Home / 2,982.30-4,115.58-1,656.00

Finding the Fourth Proportional to 2,982.30, 4,115.58 and 1,656.00

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Solution

The fourth proportional to 2,982.30, 4,115.58 and 1,656.00 is: 2,285.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.30 : 4,115.58 = 1,656.00 : x
  2. Step 2: Convert to fraction form
    2,982.30/4,115.58 = 1,656.00/x
  3. Step 3: Cross multiply
    2,982.30x = 4,115.58 × 1,656.00
  4. Step 4: Simplify right side
    2,982.30x = 6,815,379.90
  5. Step 5: Solve for x
    x = 6,815,379.90/2,982.30
  6. Step 6: Final answer
    x = 2,285.28

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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.