Home / 3,915.36-5,876.28-2,938.32

Finding the Fourth Proportional to 3,915.36, 5,876.28 and 2,938.32

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Solution

The fourth proportional to 3,915.36, 5,876.28 and 2,938.32 is: 4,409.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.36 : 5,876.28 = 2,938.32 : x
  2. Step 2: Convert to fraction form
    3,915.36/5,876.28 = 2,938.32/x
  3. Step 3: Cross multiply
    3,915.36x = 5,876.28 × 2,938.32
  4. Step 4: Simplify right side
    3,915.36x = 17,266,391.05
  5. Step 5: Solve for x
    x = 17,266,391.05/3,915.36
  6. Step 6: Final answer
    x = 4,409.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.