Home / 4,392.90-6,588.31-1,272.08

Finding the Fourth Proportional to 4,392.90, 6,588.31 and 1,272.08

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Solution

The fourth proportional to 4,392.90, 6,588.31 and 1,272.08 is: 1,907.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,392.90 : 6,588.31 = 1,272.08 : x
  2. Step 2: Convert to fraction form
    4,392.90/6,588.31 = 1,272.08/x
  3. Step 3: Cross multiply
    4,392.90x = 6,588.31 × 1,272.08
  4. Step 4: Simplify right side
    4,392.90x = 8,380,858.11
  5. Step 5: Solve for x
    x = 8,380,858.11/4,392.90
  6. Step 6: Final answer
    x = 1,907.82

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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.