Home / 4,979.81-7,470.39-1,692.02

Finding the Fourth Proportional to 4,979.81, 7,470.39 and 1,692.02

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Solution

The fourth proportional to 4,979.81, 7,470.39 and 1,692.02 is: 2,538.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.81 : 7,470.39 = 1,692.02 : x
  2. Step 2: Convert to fraction form
    4,979.81/7,470.39 = 1,692.02/x
  3. Step 3: Cross multiply
    4,979.81x = 7,470.39 × 1,692.02
  4. Step 4: Simplify right side
    4,979.81x = 12,640,011.94
  5. Step 5: Solve for x
    x = 12,640,011.94/4,979.81
  6. Step 6: Final answer
    x = 2,538.25

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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.