Home / 5,192.66-7,784.55-1,905.18

Finding the Fourth Proportional to 5,192.66, 7,784.55 and 1,905.18

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Solution

The fourth proportional to 5,192.66, 7,784.55 and 1,905.18 is: 2,856.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,192.66 : 7,784.55 = 1,905.18 : x
  2. Step 2: Convert to fraction form
    5,192.66/7,784.55 = 1,905.18/x
  3. Step 3: Cross multiply
    5,192.66x = 7,784.55 × 1,905.18
  4. Step 4: Simplify right side
    5,192.66x = 14,830,968.97
  5. Step 5: Solve for x
    x = 14,830,968.97/5,192.66
  6. Step 6: Final answer
    x = 2,856.14

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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.