Home / 7,130.16-10,698.48-3,839.76

Finding the Fourth Proportional to 7,130.16, 10,698.48 and 3,839.76

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Solution

The fourth proportional to 7,130.16, 10,698.48 and 3,839.76 is: 5,761.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.16 : 10,698.48 = 3,839.76 : x
  2. Step 2: Convert to fraction form
    7,130.16/10,698.48 = 3,839.76/x
  3. Step 3: Cross multiply
    7,130.16x = 10,698.48 × 3,839.76
  4. Step 4: Simplify right side
    7,130.16x = 41,079,595.56
  5. Step 5: Solve for x
    x = 41,079,595.56/7,130.16
  6. Step 6: Final answer
    x = 5,761.38

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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.