Home / 4,128.40-5,699.37-3,182.11

Finding the Fourth Proportional to 4,128.40, 5,699.37 and 3,182.11

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Solution

The fourth proportional to 4,128.40, 5,699.37 and 3,182.11 is: 4,392.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.40 : 5,699.37 = 3,182.11 : x
  2. Step 2: Convert to fraction form
    4,128.40/5,699.37 = 3,182.11/x
  3. Step 3: Cross multiply
    4,128.40x = 5,699.37 × 3,182.11
  4. Step 4: Simplify right side
    4,128.40x = 18,136,022.27
  5. Step 5: Solve for x
    x = 18,136,022.27/4,128.40
  6. Step 6: Final answer
    x = 4,392.99

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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.