Home / 7,649.42-11,475.28-2,718.64

Finding the Fourth Proportional to 7,649.42, 11,475.28 and 2,718.64

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Solution

The fourth proportional to 7,649.42, 11,475.28 and 2,718.64 is: 4,078.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,649.42 : 11,475.28 = 2,718.64 : x
  2. Step 2: Convert to fraction form
    7,649.42/11,475.28 = 2,718.64/x
  3. Step 3: Cross multiply
    7,649.42x = 11,475.28 × 2,718.64
  4. Step 4: Simplify right side
    7,649.42x = 31,197,155.22
  5. Step 5: Solve for x
    x = 31,197,155.22/7,649.42
  6. Step 6: Final answer
    x = 4,078.37

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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.