Home / 2,849.65-4,276.67-1,978.26

Finding the Fourth Proportional to 2,849.65, 4,276.67 and 1,978.26

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Solution

The fourth proportional to 2,849.65, 4,276.67 and 1,978.26 is: 2,968.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,849.65 : 4,276.67 = 1,978.26 : x
  2. Step 2: Convert to fraction form
    2,849.65/4,276.67 = 1,978.26/x
  3. Step 3: Cross multiply
    2,849.65x = 4,276.67 × 1,978.26
  4. Step 4: Simplify right side
    2,849.65x = 8,460,365.19
  5. Step 5: Solve for x
    x = 8,460,365.19/2,849.65
  6. Step 6: Final answer
    x = 2,968.91

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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.