Home / 3,515.22-5,272.63-1,323.77

Finding the Fourth Proportional to 3,515.22, 5,272.63 and 1,323.77

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Solution

The fourth proportional to 3,515.22, 5,272.63 and 1,323.77 is: 1,985.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.22 : 5,272.63 = 1,323.77 : x
  2. Step 2: Convert to fraction form
    3,515.22/5,272.63 = 1,323.77/x
  3. Step 3: Cross multiply
    3,515.22x = 5,272.63 × 1,323.77
  4. Step 4: Simplify right side
    3,515.22x = 6,979,719.74
  5. Step 5: Solve for x
    x = 6,979,719.74/3,515.22
  6. Step 6: Final answer
    x = 1,985.57

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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.