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Finding the Fourth Proportional to 3,672.32, 5,510.10 and 1,485.32

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Solution

The fourth proportional to 3,672.32, 5,510.10 and 1,485.32 is: 2,228.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.32 : 5,510.10 = 1,485.32 : x
  2. Step 2: Convert to fraction form
    3,672.32/5,510.10 = 1,485.32/x
  3. Step 3: Cross multiply
    3,672.32x = 5,510.10 × 1,485.32
  4. Step 4: Simplify right side
    3,672.32x = 8,184,261.73
  5. Step 5: Solve for x
    x = 8,184,261.73/3,672.32
  6. Step 6: Final answer
    x = 2,228.64

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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.