Home / 7,722.02-11,582.96-1,878.63

Finding the Fourth Proportional to 7,722.02, 11,582.96 and 1,878.63

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Solution

The fourth proportional to 7,722.02, 11,582.96 and 1,878.63 is: 2,817.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,722.02 : 11,582.96 = 1,878.63 : x
  2. Step 2: Convert to fraction form
    7,722.02/11,582.96 = 1,878.63/x
  3. Step 3: Cross multiply
    7,722.02x = 11,582.96 × 1,878.63
  4. Step 4: Simplify right side
    7,722.02x = 21,760,086.75
  5. Step 5: Solve for x
    x = 21,760,086.75/7,722.02
  6. Step 6: Final answer
    x = 2,817.93

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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.