Home / 5,128.02-7,045.92-4,078.26

Finding the Fourth Proportional to 5,128.02, 7,045.92 and 4,078.26

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Solution

The fourth proportional to 5,128.02, 7,045.92 and 4,078.26 is: 5,603.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128.02 : 7,045.92 = 4,078.26 : x
  2. Step 2: Convert to fraction form
    5,128.02/7,045.92 = 4,078.26/x
  3. Step 3: Cross multiply
    5,128.02x = 7,045.92 × 4,078.26
  4. Step 4: Simplify right side
    5,128.02x = 28,735,093.70
  5. Step 5: Solve for x
    x = 28,735,093.70/5,128.02
  6. Step 6: Final answer
    x = 5,603.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.