Home / 1,863.60-2,804.87-1,403.70

Finding the Fourth Proportional to 1,863.60, 2,804.87 and 1,403.70

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Solution

The fourth proportional to 1,863.60, 2,804.87 and 1,403.70 is: 2,112.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.60 : 2,804.87 = 1,403.70 : x
  2. Step 2: Convert to fraction form
    1,863.60/2,804.87 = 1,403.70/x
  3. Step 3: Cross multiply
    1,863.60x = 2,804.87 × 1,403.70
  4. Step 4: Simplify right side
    1,863.60x = 3,937,189.00
  5. Step 5: Solve for x
    x = 3,937,189.00/1,863.60
  6. Step 6: Final answer
    x = 2,112.68

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.