Home / 7,764.48-11,647.56-2,570.88

Finding the Fourth Proportional to 7,764.48, 11,647.56 and 2,570.88

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Solution

The fourth proportional to 7,764.48, 11,647.56 and 2,570.88 is: 3,856.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764.48 : 11,647.56 = 2,570.88 : x
  2. Step 2: Convert to fraction form
    7,764.48/11,647.56 = 2,570.88/x
  3. Step 3: Cross multiply
    7,764.48x = 11,647.56 × 2,570.88
  4. Step 4: Simplify right side
    7,764.48x = 29,944,479.05
  5. Step 5: Solve for x
    x = 29,944,479.05/7,764.48
  6. Step 6: Final answer
    x = 3,856.60

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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.