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Finding the Fourth Proportional to 2,983.92, 4,117.14 and 1,804.98

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Solution

The fourth proportional to 2,983.92, 4,117.14 and 1,804.98 is: 2,490.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.92 : 4,117.14 = 1,804.98 : x
  2. Step 2: Convert to fraction form
    2,983.92/4,117.14 = 1,804.98/x
  3. Step 3: Cross multiply
    2,983.92x = 4,117.14 × 1,804.98
  4. Step 4: Simplify right side
    2,983.92x = 7,431,355.36
  5. Step 5: Solve for x
    x = 7,431,355.36/2,983.92
  6. Step 6: Final answer
    x = 2,490.47

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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.