Home / 2,825.40-3,899.16-1,830.36

Finding the Fourth Proportional to 2,825.40, 3,899.16 and 1,830.36

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Solution

The fourth proportional to 2,825.40, 3,899.16 and 1,830.36 is: 2,525.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.40 : 3,899.16 = 1,830.36 : x
  2. Step 2: Convert to fraction form
    2,825.40/3,899.16 = 1,830.36/x
  3. Step 3: Cross multiply
    2,825.40x = 3,899.16 × 1,830.36
  4. Step 4: Simplify right side
    2,825.40x = 7,136,866.50
  5. Step 5: Solve for x
    x = 7,136,866.50/2,825.40
  6. Step 6: Final answer
    x = 2,525.97

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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.