Home / 4,087.84-5,640-2,673.28

Finding the Fourth Proportional to 4,087.84, 5,640 and 2,673.28

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Solution

The fourth proportional to 4,087.84, 5,640 and 2,673.28 is: 3,688.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.84 : 5,640 = 2,673.28 : x
  2. Step 2: Convert to fraction form
    4,087.84/5,640 = 2,673.28/x
  3. Step 3: Cross multiply
    4,087.84x = 5,640 × 2,673.28
  4. Step 4: Simplify right side
    4,087.84x = 15,077,299.20
  5. Step 5: Solve for x
    x = 15,077,299.20/4,087.84
  6. Step 6: Final answer
    x = 3,688.33

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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.