Home / 4,215.12-6,330.89-3,435.70

Finding the Fourth Proportional to 4,215.12, 6,330.89 and 3,435.70

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Solution

The fourth proportional to 4,215.12, 6,330.89 and 3,435.70 is: 5,160.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.12 : 6,330.89 = 3,435.70 : x
  2. Step 2: Convert to fraction form
    4,215.12/6,330.89 = 3,435.70/x
  3. Step 3: Cross multiply
    4,215.12x = 6,330.89 × 3,435.70
  4. Step 4: Simplify right side
    4,215.12x = 21,751,005.77
  5. Step 5: Solve for x
    x = 21,751,005.77/4,215.12
  6. Step 6: Final answer
    x = 5,160.23

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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.