Home / 4,621.49-6,379.75-2,945.19

Finding the Fourth Proportional to 4,621.49, 6,379.75 and 2,945.19

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Solution

The fourth proportional to 4,621.49, 6,379.75 and 2,945.19 is: 4,065.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,621.49 : 6,379.75 = 2,945.19 : x
  2. Step 2: Convert to fraction form
    4,621.49/6,379.75 = 2,945.19/x
  3. Step 3: Cross multiply
    4,621.49x = 6,379.75 × 2,945.19
  4. Step 4: Simplify right side
    4,621.49x = 18,789,561.18
  5. Step 5: Solve for x
    x = 18,789,561.18/4,621.49
  6. Step 6: Final answer
    x = 4,065.70

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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.