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Finding the Fourth Proportional to 3,770.55, 5,655.36 and 997.47

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Solution

The fourth proportional to 3,770.55, 5,655.36 and 997.47 is: 1,496.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,770.55 : 5,655.36 = 997.47 : x
  2. Step 2: Convert to fraction form
    3,770.55/5,655.36 = 997.47/x
  3. Step 3: Cross multiply
    3,770.55x = 5,655.36 × 997.47
  4. Step 4: Simplify right side
    3,770.55x = 5,641,051.94
  5. Step 5: Solve for x
    x = 5,641,051.94/3,770.55
  6. Step 6: Final answer
    x = 1,496.08

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1.5x scale

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.