Home / 2,705.00-4,056.08-1,781.06

Finding the Fourth Proportional to 2,705.00, 4,056.08 and 1,781.06

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Solution

The fourth proportional to 2,705.00, 4,056.08 and 1,781.06 is: 2,670.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,705.00 : 4,056.08 = 1,781.06 : x
  2. Step 2: Convert to fraction form
    2,705.00/4,056.08 = 1,781.06/x
  3. Step 3: Cross multiply
    2,705.00x = 4,056.08 × 1,781.06
  4. Step 4: Simplify right side
    2,705.00x = 7,224,092.66
  5. Step 5: Solve for x
    x = 7,224,092.66/2,705.00
  6. Step 6: Final answer
    x = 2,670.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.