Home / 3,072.81-4,240.52-1,675.56

Finding the Fourth Proportional to 3,072.81, 4,240.52 and 1,675.56

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Solution

The fourth proportional to 3,072.81, 4,240.52 and 1,675.56 is: 2,312.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.81 : 4,240.52 = 1,675.56 : x
  2. Step 2: Convert to fraction form
    3,072.81/4,240.52 = 1,675.56/x
  3. Step 3: Cross multiply
    3,072.81x = 4,240.52 × 1,675.56
  4. Step 4: Simplify right side
    3,072.81x = 7,105,245.69
  5. Step 5: Solve for x
    x = 7,105,245.69/3,072.81
  6. Step 6: Final answer
    x = 2,312.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.