Home / 6,440.20-9,648.54-2,975.56

Finding the Fourth Proportional to 6,440.20, 9,648.54 and 2,975.56

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Solution

The fourth proportional to 6,440.20, 9,648.54 and 2,975.56 is: 4,457.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.20 : 9,648.54 = 2,975.56 : x
  2. Step 2: Convert to fraction form
    6,440.20/9,648.54 = 2,975.56/x
  3. Step 3: Cross multiply
    6,440.20x = 9,648.54 × 2,975.56
  4. Step 4: Simplify right side
    6,440.20x = 28,709,809.68
  5. Step 5: Solve for x
    x = 28,709,809.68/6,440.20
  6. Step 6: Final answer
    x = 4,457.91

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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.