Home / 5,413.50-8,120.28-1,765.50

Finding the Fourth Proportional to 5,413.50, 8,120.28 and 1,765.50

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Solution

The fourth proportional to 5,413.50, 8,120.28 and 1,765.50 is: 2,648.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.50 : 8,120.28 = 1,765.50 : x
  2. Step 2: Convert to fraction form
    5,413.50/8,120.28 = 1,765.50/x
  3. Step 3: Cross multiply
    5,413.50x = 8,120.28 × 1,765.50
  4. Step 4: Simplify right side
    5,413.50x = 14,336,354.34
  5. Step 5: Solve for x
    x = 14,336,354.34/5,413.50
  6. Step 6: Final answer
    x = 2,648.26

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1.5x scale

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.