Home / 3,152.88-4,351.58-1,809.28

Finding the Fourth Proportional to 3,152.88, 4,351.58 and 1,809.28

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Solution

The fourth proportional to 3,152.88, 4,351.58 and 1,809.28 is: 2,497.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152.88 : 4,351.58 = 1,809.28 : x
  2. Step 2: Convert to fraction form
    3,152.88/4,351.58 = 1,809.28/x
  3. Step 3: Cross multiply
    3,152.88x = 4,351.58 × 1,809.28
  4. Step 4: Simplify right side
    3,152.88x = 7,873,226.66
  5. Step 5: Solve for x
    x = 7,873,226.66/3,152.88
  6. Step 6: Final answer
    x = 2,497.15

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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.