Home / 2,102.08-3,151.76-802.84

Finding the Fourth Proportional to 2,102.08, 3,151.76 and 802.84

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Solution

The fourth proportional to 2,102.08, 3,151.76 and 802.84 is: 1,203.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102.08 : 3,151.76 = 802.84 : x
  2. Step 2: Convert to fraction form
    2,102.08/3,151.76 = 802.84/x
  3. Step 3: Cross multiply
    2,102.08x = 3,151.76 × 802.84
  4. Step 4: Simplify right side
    2,102.08x = 2,530,359.00
  5. Step 5: Solve for x
    x = 2,530,359.00/2,102.08
  6. Step 6: Final answer
    x = 1,203.74

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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.