Home / 3,911.78-5,864.34-1,718.84

Finding the Fourth Proportional to 3,911.78, 5,864.34 and 1,718.84

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Solution

The fourth proportional to 3,911.78, 5,864.34 and 1,718.84 is: 2,576.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.78 : 5,864.34 = 1,718.84 : x
  2. Step 2: Convert to fraction form
    3,911.78/5,864.34 = 1,718.84/x
  3. Step 3: Cross multiply
    3,911.78x = 5,864.34 × 1,718.84
  4. Step 4: Simplify right side
    3,911.78x = 10,079,862.17
  5. Step 5: Solve for x
    x = 10,079,862.17/3,911.78
  6. Step 6: Final answer
    x = 2,576.80

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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.