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Finding the Fourth Proportional to 1,855.74, 2,560.47 and 1,027.74

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Solution

The fourth proportional to 1,855.74, 2,560.47 and 1,027.74 is: 1,418.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855.74 : 2,560.47 = 1,027.74 : x
  2. Step 2: Convert to fraction form
    1,855.74/2,560.47 = 1,027.74/x
  3. Step 3: Cross multiply
    1,855.74x = 2,560.47 × 1,027.74
  4. Step 4: Simplify right side
    1,855.74x = 2,631,497.44
  5. Step 5: Solve for x
    x = 2,631,497.44/1,855.74
  6. Step 6: Final answer
    x = 1,418.03

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1.5x scale

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.