Home / 7,085.07-10,628.21-2,154.75

Finding the Fourth Proportional to 7,085.07, 10,628.21 and 2,154.75

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Solution

The fourth proportional to 7,085.07, 10,628.21 and 2,154.75 is: 3,232.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.07 : 10,628.21 = 2,154.75 : x
  2. Step 2: Convert to fraction form
    7,085.07/10,628.21 = 2,154.75/x
  3. Step 3: Cross multiply
    7,085.07x = 10,628.21 × 2,154.75
  4. Step 4: Simplify right side
    7,085.07x = 22,901,124.72
  5. Step 5: Solve for x
    x = 22,901,124.72/7,085.07
  6. Step 6: Final answer
    x = 3,232.31

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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.