Home / 3,072.76-4,240.34-1,675.56

Finding the Fourth Proportional to 3,072.76, 4,240.34 and 1,675.56

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Solution

The fourth proportional to 3,072.76, 4,240.34 and 1,675.56 is: 2,312.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.76 : 4,240.34 = 1,675.56 : x
  2. Step 2: Convert to fraction form
    3,072.76/4,240.34 = 1,675.56/x
  3. Step 3: Cross multiply
    3,072.76x = 4,240.34 × 1,675.56
  4. Step 4: Simplify right side
    3,072.76x = 7,104,944.09
  5. Step 5: Solve for x
    x = 7,104,944.09/3,072.76
  6. Step 6: Final answer
    x = 2,312.24

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Half scale
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Double scale
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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.