Home / 1,413.36-2,120.61-632.83

Finding the Fourth Proportional to 1,413.36, 2,120.61 and 632.83

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Solution

The fourth proportional to 1,413.36, 2,120.61 and 632.83 is: 949.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413.36 : 2,120.61 = 632.83 : x
  2. Step 2: Convert to fraction form
    1,413.36/2,120.61 = 632.83/x
  3. Step 3: Cross multiply
    1,413.36x = 2,120.61 × 632.83
  4. Step 4: Simplify right side
    1,413.36x = 1,341,980.32
  5. Step 5: Solve for x
    x = 1,341,980.32/1,413.36
  6. Step 6: Final answer
    x = 949.50

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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.