Home / 3,905.06-5,389.26-2,576.45

Finding the Fourth Proportional to 3,905.06, 5,389.26 and 2,576.45

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Solution

The fourth proportional to 3,905.06, 5,389.26 and 2,576.45 is: 3,555.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.06 : 5,389.26 = 2,576.45 : x
  2. Step 2: Convert to fraction form
    3,905.06/5,389.26 = 2,576.45/x
  3. Step 3: Cross multiply
    3,905.06x = 5,389.26 × 2,576.45
  4. Step 4: Simplify right side
    3,905.06x = 13,885,172.40
  5. Step 5: Solve for x
    x = 13,885,172.40/3,905.06
  6. Step 6: Final answer
    x = 3,555.69

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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.