Home / 2,577.51-3,557.00-1,398.62

Finding the Fourth Proportional to 2,577.51, 3,557.00 and 1,398.62

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Solution

The fourth proportional to 2,577.51, 3,557.00 and 1,398.62 is: 1,930.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,577.51 : 3,557.00 = 1,398.62 : x
  2. Step 2: Convert to fraction form
    2,577.51/3,557.00 = 1,398.62/x
  3. Step 3: Cross multiply
    2,577.51x = 3,557.00 × 1,398.62
  4. Step 4: Simplify right side
    2,577.51x = 4,974,903.73
  5. Step 5: Solve for x
    x = 4,974,903.73/2,577.51
  6. Step 6: Final answer
    x = 1,930.12

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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.