Home / 5,106.61-7,048.34-3,118.84

Finding the Fourth Proportional to 5,106.61, 7,048.34 and 3,118.84

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Solution

The fourth proportional to 5,106.61, 7,048.34 and 3,118.84 is: 4,304.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.61 : 7,048.34 = 3,118.84 : x
  2. Step 2: Convert to fraction form
    5,106.61/7,048.34 = 3,118.84/x
  3. Step 3: Cross multiply
    5,106.61x = 7,048.34 × 3,118.84
  4. Step 4: Simplify right side
    5,106.61x = 21,982,611.51
  5. Step 5: Solve for x
    x = 21,982,611.51/5,106.61
  6. Step 6: Final answer
    x = 4,304.74

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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.