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Finding the Fourth Proportional to 3,577.60, 5,372.80 and 3,462.40

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Solution

The fourth proportional to 3,577.60, 5,372.80 and 3,462.40 is: 5,199.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,577.60 : 5,372.80 = 3,462.40 : x
  2. Step 2: Convert to fraction form
    3,577.60/5,372.80 = 3,462.40/x
  3. Step 3: Cross multiply
    3,577.60x = 5,372.80 × 3,462.40
  4. Step 4: Simplify right side
    3,577.60x = 18,602,782.72
  5. Step 5: Solve for x
    x = 18,602,782.72/3,577.60
  6. Step 6: Final answer
    x = 5,199.79

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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.