Home / 6,128.03-8,455.21-3,609.95

Finding the Fourth Proportional to 6,128.03, 8,455.21 and 3,609.95

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Solution

The fourth proportional to 6,128.03, 8,455.21 and 3,609.95 is: 4,980.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.03 : 8,455.21 = 3,609.95 : x
  2. Step 2: Convert to fraction form
    6,128.03/8,455.21 = 3,609.95/x
  3. Step 3: Cross multiply
    6,128.03x = 8,455.21 × 3,609.95
  4. Step 4: Simplify right side
    6,128.03x = 30,522,825.01
  5. Step 5: Solve for x
    x = 30,522,825.01/6,128.03
  6. Step 6: Final answer
    x = 4,980.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.