Home / 3,525.13-4,865.24-2,128.69

Finding the Fourth Proportional to 3,525.13, 4,865.24 and 2,128.69

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Solution

The fourth proportional to 3,525.13, 4,865.24 and 2,128.69 is: 2,937.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,525.13 : 4,865.24 = 2,128.69 : x
  2. Step 2: Convert to fraction form
    3,525.13/4,865.24 = 2,128.69/x
  3. Step 3: Cross multiply
    3,525.13x = 4,865.24 × 2,128.69
  4. Step 4: Simplify right side
    3,525.13x = 10,356,552.77
  5. Step 5: Solve for x
    x = 10,356,552.77/3,525.13
  6. Step 6: Final answer
    x = 2,937.92

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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.