Home / 1,721.07-2,582.07-1,228.11

Finding the Fourth Proportional to 1,721.07, 2,582.07 and 1,228.11

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Solution

The fourth proportional to 1,721.07, 2,582.07 and 1,228.11 is: 1,842.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.07 : 2,582.07 = 1,228.11 : x
  2. Step 2: Convert to fraction form
    1,721.07/2,582.07 = 1,228.11/x
  3. Step 3: Cross multiply
    1,721.07x = 2,582.07 × 1,228.11
  4. Step 4: Simplify right side
    1,721.07x = 3,171,065.99
  5. Step 5: Solve for x
    x = 3,171,065.99/1,721.07
  6. Step 6: Final answer
    x = 1,842.50

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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.