Home / 2,237.12-3,087.04-1,305.60

Finding the Fourth Proportional to 2,237.12, 3,087.04 and 1,305.60

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Solution

The fourth proportional to 2,237.12, 3,087.04 and 1,305.60 is: 1,801.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,237.12 : 3,087.04 = 1,305.60 : x
  2. Step 2: Convert to fraction form
    2,237.12/3,087.04 = 1,305.60/x
  3. Step 3: Cross multiply
    2,237.12x = 3,087.04 × 1,305.60
  4. Step 4: Simplify right side
    2,237.12x = 4,030,439.42
  5. Step 5: Solve for x
    x = 4,030,439.42/2,237.12
  6. Step 6: Final answer
    x = 1,801.62

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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.