Home / 3,413.34-5,120.28-1,681.02

Finding the Fourth Proportional to 3,413.34, 5,120.28 and 1,681.02

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Solution

The fourth proportional to 3,413.34, 5,120.28 and 1,681.02 is: 2,521.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.34 : 5,120.28 = 1,681.02 : x
  2. Step 2: Convert to fraction form
    3,413.34/5,120.28 = 1,681.02/x
  3. Step 3: Cross multiply
    3,413.34x = 5,120.28 × 1,681.02
  4. Step 4: Simplify right side
    3,413.34x = 8,607,293.09
  5. Step 5: Solve for x
    x = 8,607,293.09/3,413.34
  6. Step 6: Final answer
    x = 2,521.66

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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.