Home / 4,215.51-6,318.41-3,118.97

Finding the Fourth Proportional to 4,215.51, 6,318.41 and 3,118.97

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Solution

The fourth proportional to 4,215.51, 6,318.41 and 3,118.97 is: 4,674.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.51 : 6,318.41 = 3,118.97 : x
  2. Step 2: Convert to fraction form
    4,215.51/6,318.41 = 3,118.97/x
  3. Step 3: Cross multiply
    4,215.51x = 6,318.41 × 3,118.97
  4. Step 4: Simplify right side
    4,215.51x = 19,706,931.44
  5. Step 5: Solve for x
    x = 19,706,931.44/4,215.51
  6. Step 6: Final answer
    x = 4,674.86

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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.