Home / 7,218.47-10,828.09-2,288.50

Finding the Fourth Proportional to 7,218.47, 10,828.09 and 2,288.50

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Solution

The fourth proportional to 7,218.47, 10,828.09 and 2,288.50 is: 3,432.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.47 : 10,828.09 = 2,288.50 : x
  2. Step 2: Convert to fraction form
    7,218.47/10,828.09 = 2,288.50/x
  3. Step 3: Cross multiply
    7,218.47x = 10,828.09 × 2,288.50
  4. Step 4: Simplify right side
    7,218.47x = 24,780,029.82
  5. Step 5: Solve for x
    x = 24,780,029.82/7,218.47
  6. Step 6: Final answer
    x = 3,432.86

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1.5x scale

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.