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Finding the Fourth Proportional to 2,548.55, 3,517.05 and 1,803.80

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Solution

The fourth proportional to 2,548.55, 3,517.05 and 1,803.80 is: 2,489.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,548.55 : 3,517.05 = 1,803.80 : x
  2. Step 2: Convert to fraction form
    2,548.55/3,517.05 = 1,803.80/x
  3. Step 3: Cross multiply
    2,548.55x = 3,517.05 × 1,803.80
  4. Step 4: Simplify right side
    2,548.55x = 6,344,054.79
  5. Step 5: Solve for x
    x = 6,344,054.79/2,548.55
  6. Step 6: Final answer
    x = 2,489.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.