Home / 5,915.04-8,872.64-2,839.20

Finding the Fourth Proportional to 5,915.04, 8,872.64 and 2,839.20

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Solution

The fourth proportional to 5,915.04, 8,872.64 and 2,839.20 is: 4,258.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.04 : 8,872.64 = 2,839.20 : x
  2. Step 2: Convert to fraction form
    5,915.04/8,872.64 = 2,839.20/x
  3. Step 3: Cross multiply
    5,915.04x = 8,872.64 × 2,839.20
  4. Step 4: Simplify right side
    5,915.04x = 25,191,199.49
  5. Step 5: Solve for x
    x = 25,191,199.49/5,915.04
  6. Step 6: Final answer
    x = 4,258.84

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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.