Home / 3,215.58-4,844.99-2,907.78

Finding the Fourth Proportional to 3,215.58, 4,844.99 and 2,907.78

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Solution

The fourth proportional to 3,215.58, 4,844.99 and 2,907.78 is: 4,381.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.58 : 4,844.99 = 2,907.78 : x
  2. Step 2: Convert to fraction form
    3,215.58/4,844.99 = 2,907.78/x
  3. Step 3: Cross multiply
    3,215.58x = 4,844.99 × 2,907.78
  4. Step 4: Simplify right side
    3,215.58x = 14,088,150.48
  5. Step 5: Solve for x
    x = 14,088,150.48/3,215.58
  6. Step 6: Final answer
    x = 4,381.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.