Home / 4,128.24-5,682.64-3,603.36

Finding the Fourth Proportional to 4,128.24, 5,682.64 and 3,603.36

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Solution

The fourth proportional to 4,128.24, 5,682.64 and 3,603.36 is: 4,960.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.24 : 5,682.64 = 3,603.36 : x
  2. Step 2: Convert to fraction form
    4,128.24/5,682.64 = 3,603.36/x
  3. Step 3: Cross multiply
    4,128.24x = 5,682.64 × 3,603.36
  4. Step 4: Simplify right side
    4,128.24x = 20,476,597.67
  5. Step 5: Solve for x
    x = 20,476,597.67/4,128.24
  6. Step 6: Final answer
    x = 4,960.13

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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.