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Finding the Fourth Proportional to 1,548.76, 2,322.54 and 574.64

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Solution

The fourth proportional to 1,548.76, 2,322.54 and 574.64 is: 861.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.76 : 2,322.54 = 574.64 : x
  2. Step 2: Convert to fraction form
    1,548.76/2,322.54 = 574.64/x
  3. Step 3: Cross multiply
    1,548.76x = 2,322.54 × 574.64
  4. Step 4: Simplify right side
    1,548.76x = 1,334,624.39
  5. Step 5: Solve for x
    x = 1,334,624.39/1,548.76
  6. Step 6: Final answer
    x = 861.74

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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.