Home / 4,754.07-7,130.64-2,121.69

Finding the Fourth Proportional to 4,754.07, 7,130.64 and 2,121.69

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Solution

The fourth proportional to 4,754.07, 7,130.64 and 2,121.69 is: 3,182.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,754.07 : 7,130.64 = 2,121.69 : x
  2. Step 2: Convert to fraction form
    4,754.07/7,130.64 = 2,121.69/x
  3. Step 3: Cross multiply
    4,754.07x = 7,130.64 × 2,121.69
  4. Step 4: Simplify right side
    4,754.07x = 15,129,007.58
  5. Step 5: Solve for x
    x = 15,129,007.58/4,754.07
  6. Step 6: Final answer
    x = 3,182.33

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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.