Home / 5,515.67-8,274.87-1,620.06

Finding the Fourth Proportional to 5,515.67, 8,274.87 and 1,620.06

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Solution

The fourth proportional to 5,515.67, 8,274.87 and 1,620.06 is: 2,430.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.67 : 8,274.87 = 1,620.06 : x
  2. Step 2: Convert to fraction form
    5,515.67/8,274.87 = 1,620.06/x
  3. Step 3: Cross multiply
    5,515.67x = 8,274.87 × 1,620.06
  4. Step 4: Simplify right side
    5,515.67x = 13,405,785.89
  5. Step 5: Solve for x
    x = 13,405,785.89/5,515.67
  6. Step 6: Final answer
    x = 2,430.49

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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.