Home / 1,857.40-2,563.25-1,111.43

Finding the Fourth Proportional to 1,857.40, 2,563.25 and 1,111.43

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Solution

The fourth proportional to 1,857.40, 2,563.25 and 1,111.43 is: 1,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.40 : 2,563.25 = 1,111.43 : x
  2. Step 2: Convert to fraction form
    1,857.40/2,563.25 = 1,111.43/x
  3. Step 3: Cross multiply
    1,857.40x = 2,563.25 × 1,111.43
  4. Step 4: Simplify right side
    1,857.40x = 2,848,872.95
  5. Step 5: Solve for x
    x = 2,848,872.95/1,857.40
  6. Step 6: Final answer
    x = 1,533.80

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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.