Home / 6,128.16-9,190.24-2,429.72

Finding the Fourth Proportional to 6,128.16, 9,190.24 and 2,429.72

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Solution

The fourth proportional to 6,128.16, 9,190.24 and 2,429.72 is: 3,643.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.16 : 9,190.24 = 2,429.72 : x
  2. Step 2: Convert to fraction form
    6,128.16/9,190.24 = 2,429.72/x
  3. Step 3: Cross multiply
    6,128.16x = 9,190.24 × 2,429.72
  4. Step 4: Simplify right side
    6,128.16x = 22,329,709.93
  5. Step 5: Solve for x
    x = 22,329,709.93/6,128.16
  6. Step 6: Final answer
    x = 3,643.79

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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.