Home / 1,872.75-2,586.56-1,282.26

Finding the Fourth Proportional to 1,872.75, 2,586.56 and 1,282.26

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Solution

The fourth proportional to 1,872.75, 2,586.56 and 1,282.26 is: 1,771.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.75 : 2,586.56 = 1,282.26 : x
  2. Step 2: Convert to fraction form
    1,872.75/2,586.56 = 1,282.26/x
  3. Step 3: Cross multiply
    1,872.75x = 2,586.56 × 1,282.26
  4. Step 4: Simplify right side
    1,872.75x = 3,316,636.01
  5. Step 5: Solve for x
    x = 3,316,636.01/1,872.75
  6. Step 6: Final answer
    x = 1,771.00

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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.