Home / 3,914.51-5,871.74-1,319.27

Finding the Fourth Proportional to 3,914.51, 5,871.74 and 1,319.27

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Solution

The fourth proportional to 3,914.51, 5,871.74 and 1,319.27 is: 1,978.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.51 : 5,871.74 = 1,319.27 : x
  2. Step 2: Convert to fraction form
    3,914.51/5,871.74 = 1,319.27/x
  3. Step 3: Cross multiply
    3,914.51x = 5,871.74 × 1,319.27
  4. Step 4: Simplify right side
    3,914.51x = 7,746,374.47
  5. Step 5: Solve for x
    x = 7,746,374.47/3,914.51
  6. Step 6: Final answer
    x = 1,978.89

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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.