Home / 3,164.84-4,366.13-1,820.21

Finding the Fourth Proportional to 3,164.84, 4,366.13 and 1,820.21

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Solution

The fourth proportional to 3,164.84, 4,366.13 and 1,820.21 is: 2,511.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,164.84 : 4,366.13 = 1,820.21 : x
  2. Step 2: Convert to fraction form
    3,164.84/4,366.13 = 1,820.21/x
  3. Step 3: Cross multiply
    3,164.84x = 4,366.13 × 1,820.21
  4. Step 4: Simplify right side
    3,164.84x = 7,947,242.56
  5. Step 5: Solve for x
    x = 7,947,242.56/3,164.84
  6. Step 6: Final answer
    x = 2,511.11

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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.