Home / 10,195.75-15,290.85-2,798.45

Finding the Fourth Proportional to 10,195.75, 15,290.85 and 2,798.45

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Solution

The fourth proportional to 10,195.75, 15,290.85 and 2,798.45 is: 4,196.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,195.75 : 15,290.85 = 2,798.45 : x
  2. Step 2: Convert to fraction form
    10,195.75/15,290.85 = 2,798.45/x
  3. Step 3: Cross multiply
    10,195.75x = 15,290.85 × 2,798.45
  4. Step 4: Simplify right side
    10,195.75x = 42,790,665.19
  5. Step 5: Solve for x
    x = 42,790,665.19/10,195.75
  6. Step 6: Final answer
    x = 4,196.91

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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.