Home / 3,525.43-4,865.30-2,128.63

Finding the Fourth Proportional to 3,525.43, 4,865.30 and 2,128.63

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Solution

The fourth proportional to 3,525.43, 4,865.30 and 2,128.63 is: 2,937.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,525.43 : 4,865.30 = 2,128.63 : x
  2. Step 2: Convert to fraction form
    3,525.43/4,865.30 = 2,128.63/x
  3. Step 3: Cross multiply
    3,525.43x = 4,865.30 × 2,128.63
  4. Step 4: Simplify right side
    3,525.43x = 10,356,423.54
  5. Step 5: Solve for x
    x = 10,356,423.54/3,525.43
  6. Step 6: Final answer
    x = 2,937.63

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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.