Home / 2,318.80-3,200.16-1,323.88

Finding the Fourth Proportional to 2,318.80, 3,200.16 and 1,323.88

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Solution

The fourth proportional to 2,318.80, 3,200.16 and 1,323.88 is: 1,827.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.80 : 3,200.16 = 1,323.88 : x
  2. Step 2: Convert to fraction form
    2,318.80/3,200.16 = 1,323.88/x
  3. Step 3: Cross multiply
    2,318.80x = 3,200.16 × 1,323.88
  4. Step 4: Simplify right side
    2,318.80x = 4,236,627.82
  5. Step 5: Solve for x
    x = 4,236,627.82/2,318.80
  6. Step 6: Final answer
    x = 1,827.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.