Home / 1,858.09-2,787.41-559.66

Finding the Fourth Proportional to 1,858.09, 2,787.41 and 559.66

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Solution

The fourth proportional to 1,858.09, 2,787.41 and 559.66 is: 839.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858.09 : 2,787.41 = 559.66 : x
  2. Step 2: Convert to fraction form
    1,858.09/2,787.41 = 559.66/x
  3. Step 3: Cross multiply
    1,858.09x = 2,787.41 × 559.66
  4. Step 4: Simplify right side
    1,858.09x = 1,559,999.08
  5. Step 5: Solve for x
    x = 1,559,999.08/1,858.09
  6. Step 6: Final answer
    x = 839.57

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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.