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Finding the Fourth Proportional to 4,283, 5,915.40 and 2,883.32

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Solution

The fourth proportional to 4,283, 5,915.40 and 2,883.32 is: 3,982.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,283 : 5,915.40 = 2,883.32 : x
  2. Step 2: Convert to fraction form
    4,283/5,915.40 = 2,883.32/x
  3. Step 3: Cross multiply
    4,283x = 5,915.40 × 2,883.32
  4. Step 4: Simplify right side
    4,283x = 17,055,991.13
  5. Step 5: Solve for x
    x = 17,055,991.13/4,283
  6. Step 6: Final answer
    x = 3,982.25

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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.