Home / 2,387.06-3,580.13-1,200.79

Finding the Fourth Proportional to 2,387.06, 3,580.13 and 1,200.79

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Solution

The fourth proportional to 2,387.06, 3,580.13 and 1,200.79 is: 1,800.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.06 : 3,580.13 = 1,200.79 : x
  2. Step 2: Convert to fraction form
    2,387.06/3,580.13 = 1,200.79/x
  3. Step 3: Cross multiply
    2,387.06x = 3,580.13 × 1,200.79
  4. Step 4: Simplify right side
    2,387.06x = 4,298,978.35
  5. Step 5: Solve for x
    x = 4,298,978.35/2,387.06
  6. Step 6: Final answer
    x = 1,800.95

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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.