Home / 1,856.22-2,783.79-1,210.38

Finding the Fourth Proportional to 1,856.22, 2,783.79 and 1,210.38

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Solution

The fourth proportional to 1,856.22, 2,783.79 and 1,210.38 is: 1,815.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.22 : 2,783.79 = 1,210.38 : x
  2. Step 2: Convert to fraction form
    1,856.22/2,783.79 = 1,210.38/x
  3. Step 3: Cross multiply
    1,856.22x = 2,783.79 × 1,210.38
  4. Step 4: Simplify right side
    1,856.22x = 3,369,443.74
  5. Step 5: Solve for x
    x = 3,369,443.74/1,856.22
  6. Step 6: Final answer
    x = 1,815.22

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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.