Home / 4,751.16-7,122.90-1,979.91

Finding the Fourth Proportional to 4,751.16, 7,122.90 and 1,979.91

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Solution

The fourth proportional to 4,751.16, 7,122.90 and 1,979.91 is: 2,968.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.16 : 7,122.90 = 1,979.91 : x
  2. Step 2: Convert to fraction form
    4,751.16/7,122.90 = 1,979.91/x
  3. Step 3: Cross multiply
    4,751.16x = 7,122.90 × 1,979.91
  4. Step 4: Simplify right side
    4,751.16x = 14,102,700.94
  5. Step 5: Solve for x
    x = 14,102,700.94/4,751.16
  6. Step 6: Final answer
    x = 2,968.26

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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.