Home / 2,387.94-3,293.40-1,682.12

Finding the Fourth Proportional to 2,387.94, 3,293.40 and 1,682.12

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Solution

The fourth proportional to 2,387.94, 3,293.40 and 1,682.12 is: 2,319.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.94 : 3,293.40 = 1,682.12 : x
  2. Step 2: Convert to fraction form
    2,387.94/3,293.40 = 1,682.12/x
  3. Step 3: Cross multiply
    2,387.94x = 3,293.40 × 1,682.12
  4. Step 4: Simplify right side
    2,387.94x = 5,539,894.01
  5. Step 5: Solve for x
    x = 5,539,894.01/2,387.94
  6. Step 6: Final answer
    x = 2,319.95

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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.