Home / 4,802.78-6,629.08-3,128.36

Finding the Fourth Proportional to 4,802.78, 6,629.08 and 3,128.36

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Solution

The fourth proportional to 4,802.78, 6,629.08 and 3,128.36 is: 4,317.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,802.78 : 6,629.08 = 3,128.36 : x
  2. Step 2: Convert to fraction form
    4,802.78/6,629.08 = 3,128.36/x
  3. Step 3: Cross multiply
    4,802.78x = 6,629.08 × 3,128.36
  4. Step 4: Simplify right side
    4,802.78x = 20,738,148.71
  5. Step 5: Solve for x
    x = 20,738,148.71/4,802.78
  6. Step 6: Final answer
    x = 4,317.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.