Home / 2,910.08-4,015.84-1,668

Finding the Fourth Proportional to 2,910.08, 4,015.84 and 1,668

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Solution

The fourth proportional to 2,910.08, 4,015.84 and 1,668 is: 2,301.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.08 : 4,015.84 = 1,668 : x
  2. Step 2: Convert to fraction form
    2,910.08/4,015.84 = 1,668/x
  3. Step 3: Cross multiply
    2,910.08x = 4,015.84 × 1,668
  4. Step 4: Simplify right side
    2,910.08x = 6,698,421.12
  5. Step 5: Solve for x
    x = 6,698,421.12/2,910.08
  6. Step 6: Final answer
    x = 2,301.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.