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Finding the Fourth Proportional to 2,887.79, 4,332.29 and 940.01

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Solution

The fourth proportional to 2,887.79, 4,332.29 and 940.01 is: 1,410.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.79 : 4,332.29 = 940.01 : x
  2. Step 2: Convert to fraction form
    2,887.79/4,332.29 = 940.01/x
  3. Step 3: Cross multiply
    2,887.79x = 4,332.29 × 940.01
  4. Step 4: Simplify right side
    2,887.79x = 4,072,369.56
  5. Step 5: Solve for x
    x = 4,072,369.56/2,887.79
  6. Step 6: Final answer
    x = 1,410.21

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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.