Home / 5,116.30-7,670.30-1,994.69

Finding the Fourth Proportional to 5,116.30, 7,670.30 and 1,994.69

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Solution

The fourth proportional to 5,116.30, 7,670.30 and 1,994.69 is: 2,990.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.30 : 7,670.30 = 1,994.69 : x
  2. Step 2: Convert to fraction form
    5,116.30/7,670.30 = 1,994.69/x
  3. Step 3: Cross multiply
    5,116.30x = 7,670.30 × 1,994.69
  4. Step 4: Simplify right side
    5,116.30x = 15,299,879.91
  5. Step 5: Solve for x
    x = 15,299,879.91/5,116.30
  6. Step 6: Final answer
    x = 2,990.42

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1.5x scale

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.