Home / 3,076.48-4,615.44-1,129.12

Finding the Fourth Proportional to 3,076.48, 4,615.44 and 1,129.12

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Solution

The fourth proportional to 3,076.48, 4,615.44 and 1,129.12 is: 1,693.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.48 : 4,615.44 = 1,129.12 : x
  2. Step 2: Convert to fraction form
    3,076.48/4,615.44 = 1,129.12/x
  3. Step 3: Cross multiply
    3,076.48x = 4,615.44 × 1,129.12
  4. Step 4: Simplify right side
    3,076.48x = 5,211,385.61
  5. Step 5: Solve for x
    x = 5,211,385.61/3,076.48
  6. Step 6: Final answer
    x = 1,693.94

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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.