Home / 2,907.22-4,012.00-1,580.90

Finding the Fourth Proportional to 2,907.22, 4,012.00 and 1,580.90

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Solution

The fourth proportional to 2,907.22, 4,012.00 and 1,580.90 is: 2,181.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.22 : 4,012.00 = 1,580.90 : x
  2. Step 2: Convert to fraction form
    2,907.22/4,012.00 = 1,580.90/x
  3. Step 3: Cross multiply
    2,907.22x = 4,012.00 × 1,580.90
  4. Step 4: Simplify right side
    2,907.22x = 6,342,546.79
  5. Step 5: Solve for x
    x = 6,342,546.79/2,907.22
  6. Step 6: Final answer
    x = 2,181.65

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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.