Home / 1,870.07-2,803.62-1,212.62

Finding the Fourth Proportional to 1,870.07, 2,803.62 and 1,212.62

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Solution

The fourth proportional to 1,870.07, 2,803.62 and 1,212.62 is: 1,817.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870.07 : 2,803.62 = 1,212.62 : x
  2. Step 2: Convert to fraction form
    1,870.07/2,803.62 = 1,212.62/x
  3. Step 3: Cross multiply
    1,870.07x = 2,803.62 × 1,212.62
  4. Step 4: Simplify right side
    1,870.07x = 3,399,725.68
  5. Step 5: Solve for x
    x = 3,399,725.68/1,870.07
  6. Step 6: Final answer
    x = 1,817.97

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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.