Home / 5,619.02-8,432.88-2,112.21

Finding the Fourth Proportional to 5,619.02, 8,432.88 and 2,112.21

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Solution

The fourth proportional to 5,619.02, 8,432.88 and 2,112.21 is: 3,169.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.02 : 8,432.88 = 2,112.21 : x
  2. Step 2: Convert to fraction form
    5,619.02/8,432.88 = 2,112.21/x
  3. Step 3: Cross multiply
    5,619.02x = 8,432.88 × 2,112.21
  4. Step 4: Simplify right side
    5,619.02x = 17,812,013.46
  5. Step 5: Solve for x
    x = 17,812,013.46/5,619.02
  6. Step 6: Final answer
    x = 3,169.95

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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.