Home / 3,312.58-4,571.47-1,820.55

Finding the Fourth Proportional to 3,312.58, 4,571.47 and 1,820.55

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Solution

The fourth proportional to 3,312.58, 4,571.47 and 1,820.55 is: 2,512.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.58 : 4,571.47 = 1,820.55 : x
  2. Step 2: Convert to fraction form
    3,312.58/4,571.47 = 1,820.55/x
  3. Step 3: Cross multiply
    3,312.58x = 4,571.47 × 1,820.55
  4. Step 4: Simplify right side
    3,312.58x = 8,322,589.71
  5. Step 5: Solve for x
    x = 8,322,589.71/3,312.58
  6. Step 6: Final answer
    x = 2,512.42

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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.