Home / 3,076.53-4,615.38-1,689.12

Finding the Fourth Proportional to 3,076.53, 4,615.38 and 1,689.12

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Solution

The fourth proportional to 3,076.53, 4,615.38 and 1,689.12 is: 2,534.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.53 : 4,615.38 = 1,689.12 : x
  2. Step 2: Convert to fraction form
    3,076.53/4,615.38 = 1,689.12/x
  3. Step 3: Cross multiply
    3,076.53x = 4,615.38 × 1,689.12
  4. Step 4: Simplify right side
    3,076.53x = 7,795,930.67
  5. Step 5: Solve for x
    x = 7,795,930.67/3,076.53
  6. Step 6: Final answer
    x = 2,534.00

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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.