Home / 4,126.92-5,689.53-2,945.94

Finding the Fourth Proportional to 4,126.92, 5,689.53 and 2,945.94

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Solution

The fourth proportional to 4,126.92, 5,689.53 and 2,945.94 is: 4,061.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,126.92 : 5,689.53 = 2,945.94 : x
  2. Step 2: Convert to fraction form
    4,126.92/5,689.53 = 2,945.94/x
  3. Step 3: Cross multiply
    4,126.92x = 5,689.53 × 2,945.94
  4. Step 4: Simplify right side
    4,126.92x = 16,761,014.01
  5. Step 5: Solve for x
    x = 16,761,014.01/4,126.92
  6. Step 6: Final answer
    x = 4,061.39

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Double scale
Find fourth proportional to 4,127.92, 5,690.91 and 2,946.94
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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.