Home / 1,719.79-2,386.28-1,650.38

Finding the Fourth Proportional to 1,719.79, 2,386.28 and 1,650.38

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Solution

The fourth proportional to 1,719.79, 2,386.28 and 1,650.38 is: 2,289.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.79 : 2,386.28 = 1,650.38 : x
  2. Step 2: Convert to fraction form
    1,719.79/2,386.28 = 1,650.38/x
  3. Step 3: Cross multiply
    1,719.79x = 2,386.28 × 1,650.38
  4. Step 4: Simplify right side
    1,719.79x = 3,938,260.98
  5. Step 5: Solve for x
    x = 3,938,260.98/1,719.79
  6. Step 6: Final answer
    x = 2,289.97

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.