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Finding the Fourth Proportional to 6,990.96, 10,490.16 and 2,833.20

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Solution

The fourth proportional to 6,990.96, 10,490.16 and 2,833.20 is: 4,251.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.96 : 10,490.16 = 2,833.20 : x
  2. Step 2: Convert to fraction form
    6,990.96/10,490.16 = 2,833.20/x
  3. Step 3: Cross multiply
    6,990.96x = 10,490.16 × 2,833.20
  4. Step 4: Simplify right side
    6,990.96x = 29,720,721.31
  5. Step 5: Solve for x
    x = 29,720,721.31/6,990.96
  6. Step 6: Final answer
    x = 4,251.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.