Home / 3,587.60-5,380.36-1,395.81

Finding the Fourth Proportional to 3,587.60, 5,380.36 and 1,395.81

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Solution

The fourth proportional to 3,587.60, 5,380.36 and 1,395.81 is: 2,093.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.60 : 5,380.36 = 1,395.81 : x
  2. Step 2: Convert to fraction form
    3,587.60/5,380.36 = 1,395.81/x
  3. Step 3: Cross multiply
    3,587.60x = 5,380.36 × 1,395.81
  4. Step 4: Simplify right side
    3,587.60x = 7,509,956.80
  5. Step 5: Solve for x
    x = 7,509,956.80/3,587.60
  6. Step 6: Final answer
    x = 2,093.31

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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.