Home / 2,577.02-3,556.31-1,398.11

Finding the Fourth Proportional to 2,577.02, 3,556.31 and 1,398.11

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Solution

The fourth proportional to 2,577.02, 3,556.31 and 1,398.11 is: 1,929.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,577.02 : 3,556.31 = 1,398.11 : x
  2. Step 2: Convert to fraction form
    2,577.02/3,556.31 = 1,398.11/x
  3. Step 3: Cross multiply
    2,577.02x = 3,556.31 × 1,398.11
  4. Step 4: Simplify right side
    2,577.02x = 4,972,087.80
  5. Step 5: Solve for x
    x = 4,972,087.80/2,577.02
  6. Step 6: Final answer
    x = 1,929.40

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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.