Home / 5,256.42-7,877.91-2,792.40

Finding the Fourth Proportional to 5,256.42, 7,877.91 and 2,792.40

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Solution

The fourth proportional to 5,256.42, 7,877.91 and 2,792.40 is: 4,185.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,256.42 : 7,877.91 = 2,792.40 : x
  2. Step 2: Convert to fraction form
    5,256.42/7,877.91 = 2,792.40/x
  3. Step 3: Cross multiply
    5,256.42x = 7,877.91 × 2,792.40
  4. Step 4: Simplify right side
    5,256.42x = 21,998,275.88
  5. Step 5: Solve for x
    x = 21,998,275.88/5,256.42
  6. Step 6: Final answer
    x = 4,185.03

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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.