Home / 5,271.28-7,274.52-2,913.40

Finding the Fourth Proportional to 5,271.28, 7,274.52 and 2,913.40

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Solution

The fourth proportional to 5,271.28, 7,274.52 and 2,913.40 is: 4,020.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.28 : 7,274.52 = 2,913.40 : x
  2. Step 2: Convert to fraction form
    5,271.28/7,274.52 = 2,913.40/x
  3. Step 3: Cross multiply
    5,271.28x = 7,274.52 × 2,913.40
  4. Step 4: Simplify right side
    5,271.28x = 21,193,586.57
  5. Step 5: Solve for x
    x = 21,193,586.57/5,271.28
  6. Step 6: Final answer
    x = 4,020.58

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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.