Home / 4,782.24-7,175.76-3,240

Finding the Fourth Proportional to 4,782.24, 7,175.76 and 3,240

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Solution

The fourth proportional to 4,782.24, 7,175.76 and 3,240 is: 4,861.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,782.24 : 7,175.76 = 3,240 : x
  2. Step 2: Convert to fraction form
    4,782.24/7,175.76 = 3,240/x
  3. Step 3: Cross multiply
    4,782.24x = 7,175.76 × 3,240
  4. Step 4: Simplify right side
    4,782.24x = 23,249,462.40
  5. Step 5: Solve for x
    x = 23,249,462.40/4,782.24
  6. Step 6: Final answer
    x = 4,861.63

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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.