Home / 7,180.36-10,769.68-1,915.76

Finding the Fourth Proportional to 7,180.36, 10,769.68 and 1,915.76

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Solution

The fourth proportional to 7,180.36, 10,769.68 and 1,915.76 is: 2,873.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.36 : 10,769.68 = 1,915.76 : x
  2. Step 2: Convert to fraction form
    7,180.36/10,769.68 = 1,915.76/x
  3. Step 3: Cross multiply
    7,180.36x = 10,769.68 × 1,915.76
  4. Step 4: Simplify right side
    7,180.36x = 20,632,144.29
  5. Step 5: Solve for x
    x = 20,632,144.29/7,180.36
  6. Step 6: Final answer
    x = 2,873.41

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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.