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Finding the Fourth Proportional to 7,256.64, 10,887.84 and 2,642.88

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Solution

The fourth proportional to 7,256.64, 10,887.84 and 2,642.88 is: 3,965.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,256.64 : 10,887.84 = 2,642.88 : x
  2. Step 2: Convert to fraction form
    7,256.64/10,887.84 = 2,642.88/x
  3. Step 3: Cross multiply
    7,256.64x = 10,887.84 × 2,642.88
  4. Step 4: Simplify right side
    7,256.64x = 28,775,254.58
  5. Step 5: Solve for x
    x = 28,775,254.58/7,256.64
  6. Step 6: Final answer
    x = 3,965.37

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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.