Home / 3,917.14-5,875.59-1,320.07

Finding the Fourth Proportional to 3,917.14, 5,875.59 and 1,320.07

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Solution

The fourth proportional to 3,917.14, 5,875.59 and 1,320.07 is: 1,980.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.14 : 5,875.59 = 1,320.07 : x
  2. Step 2: Convert to fraction form
    3,917.14/5,875.59 = 1,320.07/x
  3. Step 3: Cross multiply
    3,917.14x = 5,875.59 × 1,320.07
  4. Step 4: Simplify right side
    3,917.14x = 7,756,190.09
  5. Step 5: Solve for x
    x = 7,756,190.09/3,917.14
  6. Step 6: Final answer
    x = 1,980.06

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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.