Home / 3,190.15-4,776.58-1,647.91

Finding the Fourth Proportional to 3,190.15, 4,776.58 and 1,647.91

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Solution

The fourth proportional to 3,190.15, 4,776.58 and 1,647.91 is: 2,467.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.15 : 4,776.58 = 1,647.91 : x
  2. Step 2: Convert to fraction form
    3,190.15/4,776.58 = 1,647.91/x
  3. Step 3: Cross multiply
    3,190.15x = 4,776.58 × 1,647.91
  4. Step 4: Simplify right side
    3,190.15x = 7,871,373.95
  5. Step 5: Solve for x
    x = 7,871,373.95/3,190.15
  6. Step 6: Final answer
    x = 2,467.40

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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.