Home / 5,271.86-7,275.64-2,914.76

Finding the Fourth Proportional to 5,271.86, 7,275.64 and 2,914.76

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Solution

The fourth proportional to 5,271.86, 7,275.64 and 2,914.76 is: 4,022.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.86 : 7,275.64 = 2,914.76 : x
  2. Step 2: Convert to fraction form
    5,271.86/7,275.64 = 2,914.76/x
  3. Step 3: Cross multiply
    5,271.86x = 7,275.64 × 2,914.76
  4. Step 4: Simplify right side
    5,271.86x = 21,206,744.45
  5. Step 5: Solve for x
    x = 21,206,744.45/5,271.86
  6. Step 6: Final answer
    x = 4,022.63

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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.