Home / 3,240.90-4,840.65-2,589.66

Finding the Fourth Proportional to 3,240.90, 4,840.65 and 2,589.66

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Solution

The fourth proportional to 3,240.90, 4,840.65 and 2,589.66 is: 3,867.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.90 : 4,840.65 = 2,589.66 : x
  2. Step 2: Convert to fraction form
    3,240.90/4,840.65 = 2,589.66/x
  3. Step 3: Cross multiply
    3,240.90x = 4,840.65 × 2,589.66
  4. Step 4: Simplify right side
    3,240.90x = 12,535,637.68
  5. Step 5: Solve for x
    x = 12,535,637.68/3,240.90
  6. Step 6: Final answer
    x = 3,867.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.