Home / 5,515.02-8,272.67-1,619.55

Finding the Fourth Proportional to 5,515.02, 8,272.67 and 1,619.55

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Solution

The fourth proportional to 5,515.02, 8,272.67 and 1,619.55 is: 2,429.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.02 : 8,272.67 = 1,619.55 : x
  2. Step 2: Convert to fraction form
    5,515.02/8,272.67 = 1,619.55/x
  3. Step 3: Cross multiply
    5,515.02x = 8,272.67 × 1,619.55
  4. Step 4: Simplify right side
    5,515.02x = 13,397,994.60
  5. Step 5: Solve for x
    x = 13,397,994.60/5,515.02
  6. Step 6: Final answer
    x = 2,429.36

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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.