Home / 2,557.07-3,827.64-1,970.55

Finding the Fourth Proportional to 2,557.07, 3,827.64 and 1,970.55

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Solution

The fourth proportional to 2,557.07, 3,827.64 and 1,970.55 is: 2,949.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.07 : 3,827.64 = 1,970.55 : x
  2. Step 2: Convert to fraction form
    2,557.07/3,827.64 = 1,970.55/x
  3. Step 3: Cross multiply
    2,557.07x = 3,827.64 × 1,970.55
  4. Step 4: Simplify right side
    2,557.07x = 7,542,556.00
  5. Step 5: Solve for x
    x = 7,542,556.00/2,557.07
  6. Step 6: Final answer
    x = 2,949.69

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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.