Home / 3,657.30-5,485.34-1,191.58

Finding the Fourth Proportional to 3,657.30, 5,485.34 and 1,191.58

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Solution

The fourth proportional to 3,657.30, 5,485.34 and 1,191.58 is: 1,787.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.30 : 5,485.34 = 1,191.58 : x
  2. Step 2: Convert to fraction form
    3,657.30/5,485.34 = 1,191.58/x
  3. Step 3: Cross multiply
    3,657.30x = 5,485.34 × 1,191.58
  4. Step 4: Simplify right side
    3,657.30x = 6,536,221.44
  5. Step 5: Solve for x
    x = 6,536,221.44/3,657.30
  6. Step 6: Final answer
    x = 1,787.17

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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.