Home / 7,051.21-10,577.09-2,121.55

Finding the Fourth Proportional to 7,051.21, 10,577.09 and 2,121.55

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Solution

The fourth proportional to 7,051.21, 10,577.09 and 2,121.55 is: 3,182.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,051.21 : 10,577.09 = 2,121.55 : x
  2. Step 2: Convert to fraction form
    7,051.21/10,577.09 = 2,121.55/x
  3. Step 3: Cross multiply
    7,051.21x = 10,577.09 × 2,121.55
  4. Step 4: Simplify right side
    7,051.21x = 22,439,814.68
  5. Step 5: Solve for x
    x = 22,439,814.68/7,051.21
  6. Step 6: Final answer
    x = 3,182.41

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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.