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Finding the Fourth Proportional to 5,888.80, 8,827.71 and 1,990.48

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Solution

The fourth proportional to 5,888.80, 8,827.71 and 1,990.48 is: 2,983.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,888.80 : 8,827.71 = 1,990.48 : x
  2. Step 2: Convert to fraction form
    5,888.80/8,827.71 = 1,990.48/x
  3. Step 3: Cross multiply
    5,888.80x = 8,827.71 × 1,990.48
  4. Step 4: Simplify right side
    5,888.80x = 17,571,380.20
  5. Step 5: Solve for x
    x = 17,571,380.20/5,888.80
  6. Step 6: Final answer
    x = 2,983.86

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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.