Home / 3,413.18-4,710.78-1,977.35

Finding the Fourth Proportional to 3,413.18, 4,710.78 and 1,977.35

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Solution

The fourth proportional to 3,413.18, 4,710.78 and 1,977.35 is: 2,729.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.18 : 4,710.78 = 1,977.35 : x
  2. Step 2: Convert to fraction form
    3,413.18/4,710.78 = 1,977.35/x
  3. Step 3: Cross multiply
    3,413.18x = 4,710.78 × 1,977.35
  4. Step 4: Simplify right side
    3,413.18x = 9,314,837.28
  5. Step 5: Solve for x
    x = 9,314,837.28/3,413.18
  6. Step 6: Final answer
    x = 2,729.08

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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.