Home / 5,515.17-8,274.12-1,619.56

Finding the Fourth Proportional to 5,515.17, 8,274.12 and 1,619.56

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Solution

The fourth proportional to 5,515.17, 8,274.12 and 1,619.56 is: 2,429.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.17 : 8,274.12 = 1,619.56 : x
  2. Step 2: Convert to fraction form
    5,515.17/8,274.12 = 1,619.56/x
  3. Step 3: Cross multiply
    5,515.17x = 8,274.12 × 1,619.56
  4. Step 4: Simplify right side
    5,515.17x = 13,400,433.79
  5. Step 5: Solve for x
    x = 13,400,433.79/5,515.17
  6. Step 6: Final answer
    x = 2,429.74

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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.