Home / 3,656.73-5,485.10-1,191.74

Finding the Fourth Proportional to 3,656.73, 5,485.10 and 1,191.74

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Solution

The fourth proportional to 3,656.73, 5,485.10 and 1,191.74 is: 1,787.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,656.73 : 5,485.10 = 1,191.74 : x
  2. Step 2: Convert to fraction form
    3,656.73/5,485.10 = 1,191.74/x
  3. Step 3: Cross multiply
    3,656.73x = 5,485.10 × 1,191.74
  4. Step 4: Simplify right side
    3,656.73x = 6,536,834.02
  5. Step 5: Solve for x
    x = 6,536,834.02/3,656.73
  6. Step 6: Final answer
    x = 1,787.62

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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.