Home / 7,450.74-11,175.80-1,904.22

Finding the Fourth Proportional to 7,450.74, 11,175.80 and 1,904.22

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Solution

The fourth proportional to 7,450.74, 11,175.80 and 1,904.22 is: 2,856.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,450.74 : 11,175.80 = 1,904.22 : x
  2. Step 2: Convert to fraction form
    7,450.74/11,175.80 = 1,904.22/x
  3. Step 3: Cross multiply
    7,450.74x = 11,175.80 × 1,904.22
  4. Step 4: Simplify right side
    7,450.74x = 21,281,172.35
  5. Step 5: Solve for x
    x = 21,281,172.35/7,450.74
  6. Step 6: Final answer
    x = 2,856.25

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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.