Home / 2,781.49-3,838.08-1,586.64

Finding the Fourth Proportional to 2,781.49, 3,838.08 and 1,586.64

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Solution

The fourth proportional to 2,781.49, 3,838.08 and 1,586.64 is: 2,189.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.49 : 3,838.08 = 1,586.64 : x
  2. Step 2: Convert to fraction form
    2,781.49/3,838.08 = 1,586.64/x
  3. Step 3: Cross multiply
    2,781.49x = 3,838.08 × 1,586.64
  4. Step 4: Simplify right side
    2,781.49x = 6,089,650.00
  5. Step 5: Solve for x
    x = 6,089,650.00/2,781.49
  6. Step 6: Final answer
    x = 2,189.35

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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.