Home / 6,420.63-9,630.52-2,037.75

Finding the Fourth Proportional to 6,420.63, 9,630.52 and 2,037.75

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Solution

The fourth proportional to 6,420.63, 9,630.52 and 2,037.75 is: 3,056.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.63 : 9,630.52 = 2,037.75 : x
  2. Step 2: Convert to fraction form
    6,420.63/9,630.52 = 2,037.75/x
  3. Step 3: Cross multiply
    6,420.63x = 9,630.52 × 2,037.75
  4. Step 4: Simplify right side
    6,420.63x = 19,624,573.15
  5. Step 5: Solve for x
    x = 19,624,573.15/6,420.63
  6. Step 6: Final answer
    x = 3,056.49

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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.