Home / 6,986.24-10,476.80-2,880

Finding the Fourth Proportional to 6,986.24, 10,476.80 and 2,880

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Solution

The fourth proportional to 6,986.24, 10,476.80 and 2,880 is: 4,318.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.24 : 10,476.80 = 2,880 : x
  2. Step 2: Convert to fraction form
    6,986.24/10,476.80 = 2,880/x
  3. Step 3: Cross multiply
    6,986.24x = 10,476.80 × 2,880
  4. Step 4: Simplify right side
    6,986.24x = 30,173,184.00
  5. Step 5: Solve for x
    x = 30,173,184.00/6,986.24
  6. Step 6: Final answer
    x = 4,318.94

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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.