Home / 3,852.39-5,315.84-2,173.70

Finding the Fourth Proportional to 3,852.39, 5,315.84 and 2,173.70

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Solution

The fourth proportional to 3,852.39, 5,315.84 and 2,173.70 is: 2,999.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,852.39 : 5,315.84 = 2,173.70 : x
  2. Step 2: Convert to fraction form
    3,852.39/5,315.84 = 2,173.70/x
  3. Step 3: Cross multiply
    3,852.39x = 5,315.84 × 2,173.70
  4. Step 4: Simplify right side
    3,852.39x = 11,555,041.41
  5. Step 5: Solve for x
    x = 11,555,041.41/3,852.39
  6. Step 6: Final answer
    x = 2,999.45

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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.