Home / 4,005.75-6,007.80-1,539.72

Finding the Fourth Proportional to 4,005.75, 6,007.80 and 1,539.72

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Solution

The fourth proportional to 4,005.75, 6,007.80 and 1,539.72 is: 2,309.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,005.75 : 6,007.80 = 1,539.72 : x
  2. Step 2: Convert to fraction form
    4,005.75/6,007.80 = 1,539.72/x
  3. Step 3: Cross multiply
    4,005.75x = 6,007.80 × 1,539.72
  4. Step 4: Simplify right side
    4,005.75x = 9,250,329.82
  5. Step 5: Solve for x
    x = 9,250,329.82/4,005.75
  6. Step 6: Final answer
    x = 2,309.26

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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.