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Finding the Fourth Proportional to 1,413.99, 1,951.30 and 792.99

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Solution

The fourth proportional to 1,413.99, 1,951.30 and 792.99 is: 1,094.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413.99 : 1,951.30 = 792.99 : x
  2. Step 2: Convert to fraction form
    1,413.99/1,951.30 = 792.99/x
  3. Step 3: Cross multiply
    1,413.99x = 1,951.30 × 792.99
  4. Step 4: Simplify right side
    1,413.99x = 1,547,355.06
  5. Step 5: Solve for x
    x = 1,547,355.06/1,413.99
  6. Step 6: Final answer
    x = 1,094.32

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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.