Home / 2,982.16-4,115.36-1,655.92

Finding the Fourth Proportional to 2,982.16, 4,115.36 and 1,655.92

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Solution

The fourth proportional to 2,982.16, 4,115.36 and 1,655.92 is: 2,285.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.16 : 4,115.36 = 1,655.92 : x
  2. Step 2: Convert to fraction form
    2,982.16/4,115.36 = 1,655.92/x
  3. Step 3: Cross multiply
    2,982.16x = 4,115.36 × 1,655.92
  4. Step 4: Simplify right side
    2,982.16x = 6,814,706.93
  5. Step 5: Solve for x
    x = 6,814,706.93/2,982.16
  6. Step 6: Final answer
    x = 2,285.16

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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.