Home / 6,441.63-9,661.28-2,930.78

Finding the Fourth Proportional to 6,441.63, 9,661.28 and 2,930.78

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Solution

The fourth proportional to 6,441.63, 9,661.28 and 2,930.78 is: 4,395.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,441.63 : 9,661.28 = 2,930.78 : x
  2. Step 2: Convert to fraction form
    6,441.63/9,661.28 = 2,930.78/x
  3. Step 3: Cross multiply
    6,441.63x = 9,661.28 × 2,930.78
  4. Step 4: Simplify right side
    6,441.63x = 28,315,095.70
  5. Step 5: Solve for x
    x = 28,315,095.70/6,441.63
  6. Step 6: Final answer
    x = 4,395.64

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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.