Home / 5,575.21-8,413.40-5,389.31

Finding the Fourth Proportional to 5,575.21, 8,413.40 and 5,389.31

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Solution

The fourth proportional to 5,575.21, 8,413.40 and 5,389.31 is: 8,132.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,575.21 : 8,413.40 = 5,389.31 : x
  2. Step 2: Convert to fraction form
    5,575.21/8,413.40 = 5,389.31/x
  3. Step 3: Cross multiply
    5,575.21x = 8,413.40 × 5,389.31
  4. Step 4: Simplify right side
    5,575.21x = 45,342,420.75
  5. Step 5: Solve for x
    x = 45,342,420.75/5,575.21
  6. Step 6: Final answer
    x = 8,132.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.