Home / 4,649.32-6,413.34-3,139.48

Finding the Fourth Proportional to 4,649.32, 6,413.34 and 3,139.48

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Solution

The fourth proportional to 4,649.32, 6,413.34 and 3,139.48 is: 4,330.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,649.32 : 6,413.34 = 3,139.48 : x
  2. Step 2: Convert to fraction form
    4,649.32/6,413.34 = 3,139.48/x
  3. Step 3: Cross multiply
    4,649.32x = 6,413.34 × 3,139.48
  4. Step 4: Simplify right side
    4,649.32x = 20,134,552.66
  5. Step 5: Solve for x
    x = 20,134,552.66/4,649.32
  6. Step 6: Final answer
    x = 4,330.64

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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.