Home / 4,609.05-6,359.93-3,120.21

Finding the Fourth Proportional to 4,609.05, 6,359.93 and 3,120.21

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Solution

The fourth proportional to 4,609.05, 6,359.93 and 3,120.21 is: 4,305.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,609.05 : 6,359.93 = 3,120.21 : x
  2. Step 2: Convert to fraction form
    4,609.05/6,359.93 = 3,120.21/x
  3. Step 3: Cross multiply
    4,609.05x = 6,359.93 × 3,120.21
  4. Step 4: Simplify right side
    4,609.05x = 19,844,301.58
  5. Step 5: Solve for x
    x = 19,844,301.58/4,609.05
  6. Step 6: Final answer
    x = 4,305.51

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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.