Home / 3,076.80-4,615.20-1,345.02

Finding the Fourth Proportional to 3,076.80, 4,615.20 and 1,345.02

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Solution

The fourth proportional to 3,076.80, 4,615.20 and 1,345.02 is: 2,017.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.80 : 4,615.20 = 1,345.02 : x
  2. Step 2: Convert to fraction form
    3,076.80/4,615.20 = 1,345.02/x
  3. Step 3: Cross multiply
    3,076.80x = 4,615.20 × 1,345.02
  4. Step 4: Simplify right side
    3,076.80x = 6,207,536.30
  5. Step 5: Solve for x
    x = 6,207,536.30/3,076.80
  6. Step 6: Final answer
    x = 2,017.53

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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.