Home / 5,271.79-7,275.21-2,914.08

Finding the Fourth Proportional to 5,271.79, 7,275.21 and 2,914.08

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Solution

The fourth proportional to 5,271.79, 7,275.21 and 2,914.08 is: 4,021.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.79 : 7,275.21 = 2,914.08 : x
  2. Step 2: Convert to fraction form
    5,271.79/7,275.21 = 2,914.08/x
  3. Step 3: Cross multiply
    5,271.79x = 7,275.21 × 2,914.08
  4. Step 4: Simplify right side
    5,271.79x = 21,200,543.96
  5. Step 5: Solve for x
    x = 21,200,543.96/5,271.79
  6. Step 6: Final answer
    x = 4,021.51

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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.