Home / 4,977.88-6,866.61-3,111.64

Finding the Fourth Proportional to 4,977.88, 6,866.61 and 3,111.64

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Solution

The fourth proportional to 4,977.88, 6,866.61 and 3,111.64 is: 4,292.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.88 : 6,866.61 = 3,111.64 : x
  2. Step 2: Convert to fraction form
    4,977.88/6,866.61 = 3,111.64/x
  3. Step 3: Cross multiply
    4,977.88x = 6,866.61 × 3,111.64
  4. Step 4: Simplify right side
    4,977.88x = 21,366,401.17
  5. Step 5: Solve for x
    x = 21,366,401.17/4,977.88
  6. Step 6: Final answer
    x = 4,292.27

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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.