Home / 7,329.40-10,990.98-2,825.72

Finding the Fourth Proportional to 7,329.40, 10,990.98 and 2,825.72

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Solution

The fourth proportional to 7,329.40, 10,990.98 and 2,825.72 is: 4,237.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.40 : 10,990.98 = 2,825.72 : x
  2. Step 2: Convert to fraction form
    7,329.40/10,990.98 = 2,825.72/x
  3. Step 3: Cross multiply
    7,329.40x = 10,990.98 × 2,825.72
  4. Step 4: Simplify right side
    7,329.40x = 31,057,432.01
  5. Step 5: Solve for x
    x = 31,057,432.01/7,329.40
  6. Step 6: Final answer
    x = 4,237.38

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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.