Home / 1,851.84-2,555.96-1,189.24

Finding the Fourth Proportional to 1,851.84, 2,555.96 and 1,189.24

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Solution

The fourth proportional to 1,851.84, 2,555.96 and 1,189.24 is: 1,641.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.84 : 2,555.96 = 1,189.24 : x
  2. Step 2: Convert to fraction form
    1,851.84/2,555.96 = 1,189.24/x
  3. Step 3: Cross multiply
    1,851.84x = 2,555.96 × 1,189.24
  4. Step 4: Simplify right side
    1,851.84x = 3,039,649.87
  5. Step 5: Solve for x
    x = 3,039,649.87/1,851.84
  6. Step 6: Final answer
    x = 1,641.42

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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.