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Finding the Fourth Proportional to 7,504.28, 11,256.90 and 2,887.28

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Solution

The fourth proportional to 7,504.28, 11,256.90 and 2,887.28 is: 4,331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,504.28 : 11,256.90 = 2,887.28 : x
  2. Step 2: Convert to fraction form
    7,504.28/11,256.90 = 2,887.28/x
  3. Step 3: Cross multiply
    7,504.28x = 11,256.90 × 2,887.28
  4. Step 4: Simplify right side
    7,504.28x = 32,501,822.23
  5. Step 5: Solve for x
    x = 32,501,822.23/7,504.28
  6. Step 6: Final answer
    x = 4,331.10

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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.