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Finding the Fourth Proportional to 1,642.32, 2,464.20 and 602.64

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Solution

The fourth proportional to 1,642.32, 2,464.20 and 602.64 is: 904.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642.32 : 2,464.20 = 602.64 : x
  2. Step 2: Convert to fraction form
    1,642.32/2,464.20 = 602.64/x
  3. Step 3: Cross multiply
    1,642.32x = 2,464.20 × 602.64
  4. Step 4: Simplify right side
    1,642.32x = 1,485,025.49
  5. Step 5: Solve for x
    x = 1,485,025.49/1,642.32
  6. Step 6: Final answer
    x = 904.22

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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.