Home / 5,328.69-7,353.79-2,971.28

Finding the Fourth Proportional to 5,328.69, 7,353.79 and 2,971.28

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Solution

The fourth proportional to 5,328.69, 7,353.79 and 2,971.28 is: 4,100.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.69 : 7,353.79 = 2,971.28 : x
  2. Step 2: Convert to fraction form
    5,328.69/7,353.79 = 2,971.28/x
  3. Step 3: Cross multiply
    5,328.69x = 7,353.79 × 2,971.28
  4. Step 4: Simplify right side
    5,328.69x = 21,850,180.11
  5. Step 5: Solve for x
    x = 21,850,180.11/5,328.69
  6. Step 6: Final answer
    x = 4,100.48

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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.