Home / 1,983.07-2,971.87-1,809.93

Finding the Fourth Proportional to 1,983.07, 2,971.87 and 1,809.93

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Solution

The fourth proportional to 1,983.07, 2,971.87 and 1,809.93 is: 2,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.07 : 2,971.87 = 1,809.93 : x
  2. Step 2: Convert to fraction form
    1,983.07/2,971.87 = 1,809.93/x
  3. Step 3: Cross multiply
    1,983.07x = 2,971.87 × 1,809.93
  4. Step 4: Simplify right side
    1,983.07x = 5,378,876.67
  5. Step 5: Solve for x
    x = 5,378,876.67/1,983.07
  6. Step 6: Final answer
    x = 2,712.40

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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.