Home / 1,719.48-2,582.25-1,280.85

Finding the Fourth Proportional to 1,719.48, 2,582.25 and 1,280.85

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Solution

The fourth proportional to 1,719.48, 2,582.25 and 1,280.85 is: 1,923.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.48 : 2,582.25 = 1,280.85 : x
  2. Step 2: Convert to fraction form
    1,719.48/2,582.25 = 1,280.85/x
  3. Step 3: Cross multiply
    1,719.48x = 2,582.25 × 1,280.85
  4. Step 4: Simplify right side
    1,719.48x = 3,307,474.91
  5. Step 5: Solve for x
    x = 3,307,474.91/1,719.48
  6. Step 6: Final answer
    x = 1,923.53

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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.