Home / 7,110.72-10,666.06-3,819.28

Finding the Fourth Proportional to 7,110.72, 10,666.06 and 3,819.28

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Solution

The fourth proportional to 7,110.72, 10,666.06 and 3,819.28 is: 5,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.72 : 10,666.06 = 3,819.28 : x
  2. Step 2: Convert to fraction form
    7,110.72/10,666.06 = 3,819.28/x
  3. Step 3: Cross multiply
    7,110.72x = 10,666.06 × 3,819.28
  4. Step 4: Simplify right side
    7,110.72x = 40,736,669.64
  5. Step 5: Solve for x
    x = 40,736,669.64/7,110.72
  6. Step 6: Final answer
    x = 5,728.91

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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.