Home / 4,325.70-5,971.05-2,890.38

Finding the Fourth Proportional to 4,325.70, 5,971.05 and 2,890.38

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Solution

The fourth proportional to 4,325.70, 5,971.05 and 2,890.38 is: 3,989.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,325.70 : 5,971.05 = 2,890.38 : x
  2. Step 2: Convert to fraction form
    4,325.70/5,971.05 = 2,890.38/x
  3. Step 3: Cross multiply
    4,325.70x = 5,971.05 × 2,890.38
  4. Step 4: Simplify right side
    4,325.70x = 17,258,603.50
  5. Step 5: Solve for x
    x = 17,258,603.50/4,325.70
  6. Step 6: Final answer
    x = 3,989.78

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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.