Home / 2,905.41-4,000.36-2,564.38

Finding the Fourth Proportional to 2,905.41, 4,000.36 and 2,564.38

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Solution

The fourth proportional to 2,905.41, 4,000.36 and 2,564.38 is: 3,530.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.41 : 4,000.36 = 2,564.38 : x
  2. Step 2: Convert to fraction form
    2,905.41/4,000.36 = 2,564.38/x
  3. Step 3: Cross multiply
    2,905.41x = 4,000.36 × 2,564.38
  4. Step 4: Simplify right side
    2,905.41x = 10,258,443.18
  5. Step 5: Solve for x
    x = 10,258,443.18/2,905.41
  6. Step 6: Final answer
    x = 3,530.81

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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.