Home / 5,915.81-8,161.75-3,792.51

Finding the Fourth Proportional to 5,915.81, 8,161.75 and 3,792.51

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Solution

The fourth proportional to 5,915.81, 8,161.75 and 3,792.51 is: 5,232.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.81 : 8,161.75 = 3,792.51 : x
  2. Step 2: Convert to fraction form
    5,915.81/8,161.75 = 3,792.51/x
  3. Step 3: Cross multiply
    5,915.81x = 8,161.75 × 3,792.51
  4. Step 4: Simplify right side
    5,915.81x = 30,953,523.23
  5. Step 5: Solve for x
    x = 30,953,523.23/5,915.81
  6. Step 6: Final answer
    x = 5,232.34

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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.