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Finding the Fourth Proportional to 6,243.09, 8,619.02 and 4,980.09

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Solution

The fourth proportional to 6,243.09, 8,619.02 and 4,980.09 is: 6,875.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,243.09 : 8,619.02 = 4,980.09 : x
  2. Step 2: Convert to fraction form
    6,243.09/8,619.02 = 4,980.09/x
  3. Step 3: Cross multiply
    6,243.09x = 8,619.02 × 4,980.09
  4. Step 4: Simplify right side
    6,243.09x = 42,923,495.31
  5. Step 5: Solve for x
    x = 42,923,495.31/6,243.09
  6. Step 6: Final answer
    x = 6,875.36

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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.