Home / 2,176.19-3,262.96-715.15

Finding the Fourth Proportional to 2,176.19, 3,262.96 and 715.15

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Solution

The fourth proportional to 2,176.19, 3,262.96 and 715.15 is: 1,072.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.19 : 3,262.96 = 715.15 : x
  2. Step 2: Convert to fraction form
    2,176.19/3,262.96 = 715.15/x
  3. Step 3: Cross multiply
    2,176.19x = 3,262.96 × 715.15
  4. Step 4: Simplify right side
    2,176.19x = 2,333,485.95
  5. Step 5: Solve for x
    x = 2,333,485.95/2,176.19
  6. Step 6: Final answer
    x = 1,072.28

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1.5x scale

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.