Home / 3,659.04-5,485.25-1,318.48

Finding the Fourth Proportional to 3,659.04, 5,485.25 and 1,318.48

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Solution

The fourth proportional to 3,659.04, 5,485.25 and 1,318.48 is: 1,976.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,659.04 : 5,485.25 = 1,318.48 : x
  2. Step 2: Convert to fraction form
    3,659.04/5,485.25 = 1,318.48/x
  3. Step 3: Cross multiply
    3,659.04x = 5,485.25 × 1,318.48
  4. Step 4: Simplify right side
    3,659.04x = 7,232,182.00
  5. Step 5: Solve for x
    x = 7,232,182.00/3,659.04
  6. Step 6: Final answer
    x = 1,976.52

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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.