Home / 3,934.78-5,432.76-2,611.24

Finding the Fourth Proportional to 3,934.78, 5,432.76 and 2,611.24

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Solution

The fourth proportional to 3,934.78, 5,432.76 and 2,611.24 is: 3,605.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.78 : 5,432.76 = 2,611.24 : x
  2. Step 2: Convert to fraction form
    3,934.78/5,432.76 = 2,611.24/x
  3. Step 3: Cross multiply
    3,934.78x = 5,432.76 × 2,611.24
  4. Step 4: Simplify right side
    3,934.78x = 14,186,240.22
  5. Step 5: Solve for x
    x = 14,186,240.22/3,934.78
  6. Step 6: Final answer
    x = 3,605.35

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1.5x scale

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.