Home / 1,855.02-2,556.48-1,521.51

Finding the Fourth Proportional to 1,855.02, 2,556.48 and 1,521.51

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Solution

The fourth proportional to 1,855.02, 2,556.48 and 1,521.51 is: 2,096.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855.02 : 2,556.48 = 1,521.51 : x
  2. Step 2: Convert to fraction form
    1,855.02/2,556.48 = 1,521.51/x
  3. Step 3: Cross multiply
    1,855.02x = 2,556.48 × 1,521.51
  4. Step 4: Simplify right side
    1,855.02x = 3,889,709.88
  5. Step 5: Solve for x
    x = 3,889,709.88/1,855.02
  6. Step 6: Final answer
    x = 2,096.86

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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.