Home / 1,821.48-2,511.72-1,673.52

Finding the Fourth Proportional to 1,821.48, 2,511.72 and 1,673.52

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Solution

The fourth proportional to 1,821.48, 2,511.72 and 1,673.52 is: 2,307.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.48 : 2,511.72 = 1,673.52 : x
  2. Step 2: Convert to fraction form
    1,821.48/2,511.72 = 1,673.52/x
  3. Step 3: Cross multiply
    1,821.48x = 2,511.72 × 1,673.52
  4. Step 4: Simplify right side
    1,821.48x = 4,203,413.65
  5. Step 5: Solve for x
    x = 4,203,413.65/1,821.48
  6. Step 6: Final answer
    x = 2,307.69

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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.