Home / 2,910.45-4,016.52-1,668.69

Finding the Fourth Proportional to 2,910.45, 4,016.52 and 1,668.69

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Solution

The fourth proportional to 2,910.45, 4,016.52 and 1,668.69 is: 2,302.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.45 : 4,016.52 = 1,668.69 : x
  2. Step 2: Convert to fraction form
    2,910.45/4,016.52 = 1,668.69/x
  3. Step 3: Cross multiply
    2,910.45x = 4,016.52 × 1,668.69
  4. Step 4: Simplify right side
    2,910.45x = 6,702,326.76
  5. Step 5: Solve for x
    x = 6,702,326.76/2,910.45
  6. Step 6: Final answer
    x = 2,302.85

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1.5x scale

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.