Home / 3,858.07-5,788.02-1,261

Finding the Fourth Proportional to 3,858.07, 5,788.02 and 1,261

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Solution

The fourth proportional to 3,858.07, 5,788.02 and 1,261 is: 1,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.07 : 5,788.02 = 1,261 : x
  2. Step 2: Convert to fraction form
    3,858.07/5,788.02 = 1,261/x
  3. Step 3: Cross multiply
    3,858.07x = 5,788.02 × 1,261
  4. Step 4: Simplify right side
    3,858.07x = 7,298,693.22
  5. Step 5: Solve for x
    x = 7,298,693.22/3,858.07
  6. Step 6: Final answer
    x = 1,891.80

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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.