Home / 2,577.02-3,556.28-1,398.09

Finding the Fourth Proportional to 2,577.02, 3,556.28 and 1,398.09

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Solution

The fourth proportional to 2,577.02, 3,556.28 and 1,398.09 is: 1,929.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,577.02 : 3,556.28 = 1,398.09 : x
  2. Step 2: Convert to fraction form
    2,577.02/3,556.28 = 1,398.09/x
  3. Step 3: Cross multiply
    2,577.02x = 3,556.28 × 1,398.09
  4. Step 4: Simplify right side
    2,577.02x = 4,971,992.51
  5. Step 5: Solve for x
    x = 4,971,992.51/2,577.02
  6. Step 6: Final answer
    x = 1,929.36

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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.