Home / 4,728.19-7,090.11-1,440.61

Finding the Fourth Proportional to 4,728.19, 7,090.11 and 1,440.61

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Solution

The fourth proportional to 4,728.19, 7,090.11 and 1,440.61 is: 2,160.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,728.19 : 7,090.11 = 1,440.61 : x
  2. Step 2: Convert to fraction form
    4,728.19/7,090.11 = 1,440.61/x
  3. Step 3: Cross multiply
    4,728.19x = 7,090.11 × 1,440.61
  4. Step 4: Simplify right side
    4,728.19x = 10,214,083.37
  5. Step 5: Solve for x
    x = 10,214,083.37/4,728.19
  6. Step 6: Final answer
    x = 2,160.25

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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.