Home / 2,910.80-4,016.76-1,651.83

Finding the Fourth Proportional to 2,910.80, 4,016.76 and 1,651.83

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Solution

The fourth proportional to 2,910.80, 4,016.76 and 1,651.83 is: 2,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.80 : 4,016.76 = 1,651.83 : x
  2. Step 2: Convert to fraction form
    2,910.80/4,016.76 = 1,651.83/x
  3. Step 3: Cross multiply
    2,910.80x = 4,016.76 × 1,651.83
  4. Step 4: Simplify right side
    2,910.80x = 6,635,004.67
  5. Step 5: Solve for x
    x = 6,635,004.67/2,910.80
  6. Step 6: Final answer
    x = 2,279.45

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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.