Home / 2,176.37-3,263.86-715.18

Finding the Fourth Proportional to 2,176.37, 3,263.86 and 715.18

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Solution

The fourth proportional to 2,176.37, 3,263.86 and 715.18 is: 1,072.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.37 : 3,263.86 = 715.18 : x
  2. Step 2: Convert to fraction form
    2,176.37/3,263.86 = 715.18/x
  3. Step 3: Cross multiply
    2,176.37x = 3,263.86 × 715.18
  4. Step 4: Simplify right side
    2,176.37x = 2,334,237.45
  5. Step 5: Solve for x
    x = 2,334,237.45/2,176.37
  6. Step 6: Final answer
    x = 1,072.54

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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.