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Finding the Fourth Proportional to 1,103.57, 1,655.55 and 453.95

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Solution

The fourth proportional to 1,103.57, 1,655.55 and 453.95 is: 681.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103.57 : 1,655.55 = 453.95 : x
  2. Step 2: Convert to fraction form
    1,103.57/1,655.55 = 453.95/x
  3. Step 3: Cross multiply
    1,103.57x = 1,655.55 × 453.95
  4. Step 4: Simplify right side
    1,103.57x = 751,528.64
  5. Step 5: Solve for x
    x = 751,528.64/1,103.57
  6. Step 6: Final answer
    x = 681.00

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.