Home / 1,811.06-2,499.09-1,438.94

Finding the Fourth Proportional to 1,811.06, 2,499.09 and 1,438.94

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Solution

The fourth proportional to 1,811.06, 2,499.09 and 1,438.94 is: 1,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.06 : 2,499.09 = 1,438.94 : x
  2. Step 2: Convert to fraction form
    1,811.06/2,499.09 = 1,438.94/x
  3. Step 3: Cross multiply
    1,811.06x = 2,499.09 × 1,438.94
  4. Step 4: Simplify right side
    1,811.06x = 3,596,040.56
  5. Step 5: Solve for x
    x = 3,596,040.56/1,811.06
  6. Step 6: Final answer
    x = 1,985.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.