Home / 6,403.82-9,606.89-3,116.91

Finding the Fourth Proportional to 6,403.82, 9,606.89 and 3,116.91

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Solution

The fourth proportional to 6,403.82, 9,606.89 and 3,116.91 is: 4,675.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,403.82 : 9,606.89 = 3,116.91 : x
  2. Step 2: Convert to fraction form
    6,403.82/9,606.89 = 3,116.91/x
  3. Step 3: Cross multiply
    6,403.82x = 9,606.89 × 3,116.91
  4. Step 4: Simplify right side
    6,403.82x = 29,943,811.51
  5. Step 5: Solve for x
    x = 29,943,811.51/6,403.82
  6. Step 6: Final answer
    x = 4,675.93

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1.5x scale

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.