Home / 3,218.94-4,442.36-1,802.76

Finding the Fourth Proportional to 3,218.94, 4,442.36 and 1,802.76

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Solution

The fourth proportional to 3,218.94, 4,442.36 and 1,802.76 is: 2,487.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.94 : 4,442.36 = 1,802.76 : x
  2. Step 2: Convert to fraction form
    3,218.94/4,442.36 = 1,802.76/x
  3. Step 3: Cross multiply
    3,218.94x = 4,442.36 × 1,802.76
  4. Step 4: Simplify right side
    3,218.94x = 8,008,508.91
  5. Step 5: Solve for x
    x = 8,008,508.91/3,218.94
  6. Step 6: Final answer
    x = 2,487.93

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Double scale
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1.5x scale

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.