Home / 3,515.60-5,272.43-1,324.95

Finding the Fourth Proportional to 3,515.60, 5,272.43 and 1,324.95

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Solution

The fourth proportional to 3,515.60, 5,272.43 and 1,324.95 is: 1,987.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.60 : 5,272.43 = 1,324.95 : x
  2. Step 2: Convert to fraction form
    3,515.60/5,272.43 = 1,324.95/x
  3. Step 3: Cross multiply
    3,515.60x = 5,272.43 × 1,324.95
  4. Step 4: Simplify right side
    3,515.60x = 6,985,699.50
  5. Step 5: Solve for x
    x = 6,985,699.50/3,515.60
  6. Step 6: Final answer
    x = 1,987.06

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1.5x scale

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.