Home / 7,131.21-10,698.65-2,969.84

Finding the Fourth Proportional to 7,131.21, 10,698.65 and 2,969.84

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Solution

The fourth proportional to 7,131.21, 10,698.65 and 2,969.84 is: 4,455.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.21 : 10,698.65 = 2,969.84 : x
  2. Step 2: Convert to fraction form
    7,131.21/10,698.65 = 2,969.84/x
  3. Step 3: Cross multiply
    7,131.21x = 10,698.65 × 2,969.84
  4. Step 4: Simplify right side
    7,131.21x = 31,773,210.37
  5. Step 5: Solve for x
    x = 31,773,210.37/7,131.21
  6. Step 6: Final answer
    x = 4,455.51

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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.