Home / 7,910.81-11,868.69-2,364.38

Finding the Fourth Proportional to 7,910.81, 11,868.69 and 2,364.38

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Solution

The fourth proportional to 7,910.81, 11,868.69 and 2,364.38 is: 3,547.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910.81 : 11,868.69 = 2,364.38 : x
  2. Step 2: Convert to fraction form
    7,910.81/11,868.69 = 2,364.38/x
  3. Step 3: Cross multiply
    7,910.81x = 11,868.69 × 2,364.38
  4. Step 4: Simplify right side
    7,910.81x = 28,062,093.26
  5. Step 5: Solve for x
    x = 28,062,093.26/7,910.81
  6. Step 6: Final answer
    x = 3,547.31

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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.