Home / 3,456.63-4,769.91-2,130.37

Finding the Fourth Proportional to 3,456.63, 4,769.91 and 2,130.37

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Solution

The fourth proportional to 3,456.63, 4,769.91 and 2,130.37 is: 2,939.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.63 : 4,769.91 = 2,130.37 : x
  2. Step 2: Convert to fraction form
    3,456.63/4,769.91 = 2,130.37/x
  3. Step 3: Cross multiply
    3,456.63x = 4,769.91 × 2,130.37
  4. Step 4: Simplify right side
    3,456.63x = 10,161,661.24
  5. Step 5: Solve for x
    x = 10,161,661.24/3,456.63
  6. Step 6: Final answer
    x = 2,939.76

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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.