Home / 7,191.74-10,787.67-1,998.02

Finding the Fourth Proportional to 7,191.74, 10,787.67 and 1,998.02

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Solution

The fourth proportional to 7,191.74, 10,787.67 and 1,998.02 is: 2,997.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191.74 : 10,787.67 = 1,998.02 : x
  2. Step 2: Convert to fraction form
    7,191.74/10,787.67 = 1,998.02/x
  3. Step 3: Cross multiply
    7,191.74x = 10,787.67 × 1,998.02
  4. Step 4: Simplify right side
    7,191.74x = 21,553,980.41
  5. Step 5: Solve for x
    x = 21,553,980.41/7,191.74
  6. Step 6: Final answer
    x = 2,997.05

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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.