Home / 1,719.51-2,372.67-1,020.75

Finding the Fourth Proportional to 1,719.51, 2,372.67 and 1,020.75

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Solution

The fourth proportional to 1,719.51, 2,372.67 and 1,020.75 is: 1,408.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.51 : 2,372.67 = 1,020.75 : x
  2. Step 2: Convert to fraction form
    1,719.51/2,372.67 = 1,020.75/x
  3. Step 3: Cross multiply
    1,719.51x = 2,372.67 × 1,020.75
  4. Step 4: Simplify right side
    1,719.51x = 2,421,902.90
  5. Step 5: Solve for x
    x = 2,421,902.90/1,719.51
  6. Step 6: Final answer
    x = 1,408.48

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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.