Home / 2,982.72-4,116.18-1,656.45

Finding the Fourth Proportional to 2,982.72, 4,116.18 and 1,656.45

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Solution

The fourth proportional to 2,982.72, 4,116.18 and 1,656.45 is: 2,285.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.72 : 4,116.18 = 1,656.45 : x
  2. Step 2: Convert to fraction form
    2,982.72/4,116.18 = 1,656.45/x
  3. Step 3: Cross multiply
    2,982.72x = 4,116.18 × 1,656.45
  4. Step 4: Simplify right side
    2,982.72x = 6,818,252.57
  5. Step 5: Solve for x
    x = 6,818,252.57/2,982.72
  6. Step 6: Final answer
    x = 2,285.91

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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.