Home / 2,927.30-4,039.20-1,808.60

Finding the Fourth Proportional to 2,927.30, 4,039.20 and 1,808.60

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Solution

The fourth proportional to 2,927.30, 4,039.20 and 1,808.60 is: 2,495.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.30 : 4,039.20 = 1,808.60 : x
  2. Step 2: Convert to fraction form
    2,927.30/4,039.20 = 1,808.60/x
  3. Step 3: Cross multiply
    2,927.30x = 4,039.20 × 1,808.60
  4. Step 4: Simplify right side
    2,927.30x = 7,305,276.92
  5. Step 5: Solve for x
    x = 7,305,276.92/2,927.30
  6. Step 6: Final answer
    x = 2,495.57

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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.