Home / 5,271.60-7,274.73-2,913.78

Finding the Fourth Proportional to 5,271.60, 7,274.73 and 2,913.78

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Solution

The fourth proportional to 5,271.60, 7,274.73 and 2,913.78 is: 4,020.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.60 : 7,274.73 = 2,913.78 : x
  2. Step 2: Convert to fraction form
    5,271.60/7,274.73 = 2,913.78/x
  3. Step 3: Cross multiply
    5,271.60x = 7,274.73 × 2,913.78
  4. Step 4: Simplify right side
    5,271.60x = 21,196,962.78
  5. Step 5: Solve for x
    x = 21,196,962.78/5,271.60
  6. Step 6: Final answer
    x = 4,020.97

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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.