Home / 4,985.21-6,879.63-2,747.16

Finding the Fourth Proportional to 4,985.21, 6,879.63 and 2,747.16

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Solution

The fourth proportional to 4,985.21, 6,879.63 and 2,747.16 is: 3,791.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.21 : 6,879.63 = 2,747.16 : x
  2. Step 2: Convert to fraction form
    4,985.21/6,879.63 = 2,747.16/x
  3. Step 3: Cross multiply
    4,985.21x = 6,879.63 × 2,747.16
  4. Step 4: Simplify right side
    4,985.21x = 18,899,465.06
  5. Step 5: Solve for x
    x = 18,899,465.06/4,985.21
  6. Step 6: Final answer
    x = 3,791.11

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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.