Home / 6,128.60-9,203.70-4,745.30

Finding the Fourth Proportional to 6,128.60, 9,203.70 and 4,745.30

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Solution

The fourth proportional to 6,128.60, 9,203.70 and 4,745.30 is: 7,126.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.60 : 9,203.70 = 4,745.30 : x
  2. Step 2: Convert to fraction form
    6,128.60/9,203.70 = 4,745.30/x
  3. Step 3: Cross multiply
    6,128.60x = 9,203.70 × 4,745.30
  4. Step 4: Simplify right side
    6,128.60x = 43,674,317.61
  5. Step 5: Solve for x
    x = 43,674,317.61/6,128.60
  6. Step 6: Final answer
    x = 7,126.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.