Home / 5,377.12-7,413.39-3,885.39

Finding the Fourth Proportional to 5,377.12, 7,413.39 and 3,885.39

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Solution

The fourth proportional to 5,377.12, 7,413.39 and 3,885.39 is: 5,356.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.12 : 7,413.39 = 3,885.39 : x
  2. Step 2: Convert to fraction form
    5,377.12/7,413.39 = 3,885.39/x
  3. Step 3: Cross multiply
    5,377.12x = 7,413.39 × 3,885.39
  4. Step 4: Simplify right side
    5,377.12x = 28,803,911.37
  5. Step 5: Solve for x
    x = 28,803,911.37/5,377.12
  6. Step 6: Final answer
    x = 5,356.76

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1.5x scale

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.