Home / 4,128.67-5,702.26-2,800.07

Finding the Fourth Proportional to 4,128.67, 5,702.26 and 2,800.07

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Solution

The fourth proportional to 4,128.67, 5,702.26 and 2,800.07 is: 3,867.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.67 : 5,702.26 = 2,800.07 : x
  2. Step 2: Convert to fraction form
    4,128.67/5,702.26 = 2,800.07/x
  3. Step 3: Cross multiply
    4,128.67x = 5,702.26 × 2,800.07
  4. Step 4: Simplify right side
    4,128.67x = 15,966,727.16
  5. Step 5: Solve for x
    x = 15,966,727.16/4,128.67
  6. Step 6: Final answer
    x = 3,867.28

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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.