Home / 1,907.81-2,861.28-1,204.68

Finding the Fourth Proportional to 1,907.81, 2,861.28 and 1,204.68

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Solution

The fourth proportional to 1,907.81, 2,861.28 and 1,204.68 is: 1,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.81 : 2,861.28 = 1,204.68 : x
  2. Step 2: Convert to fraction form
    1,907.81/2,861.28 = 1,204.68/x
  3. Step 3: Cross multiply
    1,907.81x = 2,861.28 × 1,204.68
  4. Step 4: Simplify right side
    1,907.81x = 3,446,926.79
  5. Step 5: Solve for x
    x = 3,446,926.79/1,907.81
  6. Step 6: Final answer
    x = 1,806.75

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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.