Home / 7,811.22-11,714.37-2,615.88

Finding the Fourth Proportional to 7,811.22, 11,714.37 and 2,615.88

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Solution

The fourth proportional to 7,811.22, 11,714.37 and 2,615.88 is: 3,923.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.22 : 11,714.37 = 2,615.88 : x
  2. Step 2: Convert to fraction form
    7,811.22/11,714.37 = 2,615.88/x
  3. Step 3: Cross multiply
    7,811.22x = 11,714.37 × 2,615.88
  4. Step 4: Simplify right side
    7,811.22x = 30,643,386.20
  5. Step 5: Solve for x
    x = 30,643,386.20/7,811.22
  6. Step 6: Final answer
    x = 3,923.00

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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.