Home / 6,619.02-9,928.49-1,688.62

Finding the Fourth Proportional to 6,619.02, 9,928.49 and 1,688.62

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Solution

The fourth proportional to 6,619.02, 9,928.49 and 1,688.62 is: 2,532.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.02 : 9,928.49 = 1,688.62 : x
  2. Step 2: Convert to fraction form
    6,619.02/9,928.49 = 1,688.62/x
  3. Step 3: Cross multiply
    6,619.02x = 9,928.49 × 1,688.62
  4. Step 4: Simplify right side
    6,619.02x = 16,765,446.78
  5. Step 5: Solve for x
    x = 16,765,446.78/6,619.02
  6. Step 6: Final answer
    x = 2,532.92

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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.