Home / 7,649.21-11,475.54-2,718.83

Finding the Fourth Proportional to 7,649.21, 11,475.54 and 2,718.83

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Solution

The fourth proportional to 7,649.21, 11,475.54 and 2,718.83 is: 4,078.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,649.21 : 11,475.54 = 2,718.83 : x
  2. Step 2: Convert to fraction form
    7,649.21/11,475.54 = 2,718.83/x
  3. Step 3: Cross multiply
    7,649.21x = 11,475.54 × 2,718.83
  4. Step 4: Simplify right side
    7,649.21x = 31,199,985.04
  5. Step 5: Solve for x
    x = 31,199,985.04/7,649.21
  6. Step 6: Final answer
    x = 4,078.85

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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.