Home / 1,719.14-2,577.56-1,390.48

Finding the Fourth Proportional to 1,719.14, 2,577.56 and 1,390.48

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Solution

The fourth proportional to 1,719.14, 2,577.56 and 1,390.48 is: 2,084.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.14 : 2,577.56 = 1,390.48 : x
  2. Step 2: Convert to fraction form
    1,719.14/2,577.56 = 1,390.48/x
  3. Step 3: Cross multiply
    1,719.14x = 2,577.56 × 1,390.48
  4. Step 4: Simplify right side
    1,719.14x = 3,584,045.63
  5. Step 5: Solve for x
    x = 3,584,045.63/1,719.14
  6. Step 6: Final answer
    x = 2,084.79

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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.