Home / 7,125.45-10,689.35-2,195.09

Finding the Fourth Proportional to 7,125.45, 10,689.35 and 2,195.09

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Solution

The fourth proportional to 7,125.45, 10,689.35 and 2,195.09 is: 3,293.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.45 : 10,689.35 = 2,195.09 : x
  2. Step 2: Convert to fraction form
    7,125.45/10,689.35 = 2,195.09/x
  3. Step 3: Cross multiply
    7,125.45x = 10,689.35 × 2,195.09
  4. Step 4: Simplify right side
    7,125.45x = 23,464,074.32
  5. Step 5: Solve for x
    x = 23,464,074.32/7,125.45
  6. Step 6: Final answer
    x = 3,293.00

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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.