Home / 4,811.31-6,639.17-2,686.68

Finding the Fourth Proportional to 4,811.31, 6,639.17 and 2,686.68

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Solution

The fourth proportional to 4,811.31, 6,639.17 and 2,686.68 is: 3,707.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.31 : 6,639.17 = 2,686.68 : x
  2. Step 2: Convert to fraction form
    4,811.31/6,639.17 = 2,686.68/x
  3. Step 3: Cross multiply
    4,811.31x = 6,639.17 × 2,686.68
  4. Step 4: Simplify right side
    4,811.31x = 17,837,311.82
  5. Step 5: Solve for x
    x = 17,837,311.82/4,811.31
  6. Step 6: Final answer
    x = 3,707.37

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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.