Home / 4,392.87-6,588.32-1,272.21

Finding the Fourth Proportional to 4,392.87, 6,588.32 and 1,272.21

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Solution

The fourth proportional to 4,392.87, 6,588.32 and 1,272.21 is: 1,908.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,392.87 : 6,588.32 = 1,272.21 : x
  2. Step 2: Convert to fraction form
    4,392.87/6,588.32 = 1,272.21/x
  3. Step 3: Cross multiply
    4,392.87x = 6,588.32 × 1,272.21
  4. Step 4: Simplify right side
    4,392.87x = 8,381,720.23
  5. Step 5: Solve for x
    x = 8,381,720.23/4,392.87
  6. Step 6: Final answer
    x = 1,908.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.