Home / 4,618.69-6,928.02-1,331.80

Finding the Fourth Proportional to 4,618.69, 6,928.02 and 1,331.80

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Solution

The fourth proportional to 4,618.69, 6,928.02 and 1,331.80 is: 1,997.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,618.69 : 6,928.02 = 1,331.80 : x
  2. Step 2: Convert to fraction form
    4,618.69/6,928.02 = 1,331.80/x
  3. Step 3: Cross multiply
    4,618.69x = 6,928.02 × 1,331.80
  4. Step 4: Simplify right side
    4,618.69x = 9,226,737.04
  5. Step 5: Solve for x
    x = 9,226,737.04/4,618.69
  6. Step 6: Final answer
    x = 1,997.70

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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.