Home / 2,804.10-3,868.28-1,809

Finding the Fourth Proportional to 2,804.10, 3,868.28 and 1,809

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Solution

The fourth proportional to 2,804.10, 3,868.28 and 1,809 is: 2,495.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,804.10 : 3,868.28 = 1,809 : x
  2. Step 2: Convert to fraction form
    2,804.10/3,868.28 = 1,809/x
  3. Step 3: Cross multiply
    2,804.10x = 3,868.28 × 1,809
  4. Step 4: Simplify right side
    2,804.10x = 6,997,718.52
  5. Step 5: Solve for x
    x = 6,997,718.52/2,804.10
  6. Step 6: Final answer
    x = 2,495.53

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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.