Home / 7,779.49-11,670.38-2,512.74

Finding the Fourth Proportional to 7,779.49, 11,670.38 and 2,512.74

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Solution

The fourth proportional to 7,779.49, 11,670.38 and 2,512.74 is: 3,769.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.49 : 11,670.38 = 2,512.74 : x
  2. Step 2: Convert to fraction form
    7,779.49/11,670.38 = 2,512.74/x
  3. Step 3: Cross multiply
    7,779.49x = 11,670.38 × 2,512.74
  4. Step 4: Simplify right side
    7,779.49x = 29,324,618.08
  5. Step 5: Solve for x
    x = 29,324,618.08/7,779.49
  6. Step 6: Final answer
    x = 3,769.48

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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.