Home / 7,272.84-10,035.12-4,128.48

Finding the Fourth Proportional to 7,272.84, 10,035.12 and 4,128.48

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Solution

The fourth proportional to 7,272.84, 10,035.12 and 4,128.48 is: 5,696.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.84 : 10,035.12 = 4,128.48 : x
  2. Step 2: Convert to fraction form
    7,272.84/10,035.12 = 4,128.48/x
  3. Step 3: Cross multiply
    7,272.84x = 10,035.12 × 4,128.48
  4. Step 4: Simplify right side
    7,272.84x = 41,429,792.22
  5. Step 5: Solve for x
    x = 41,429,792.22/7,272.84
  6. Step 6: Final answer
    x = 5,696.51

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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.