Home / 2,381.71-3,284.61-1,984.69

Finding the Fourth Proportional to 2,381.71, 3,284.61 and 1,984.69

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Solution

The fourth proportional to 2,381.71, 3,284.61 and 1,984.69 is: 2,737.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.71 : 3,284.61 = 1,984.69 : x
  2. Step 2: Convert to fraction form
    2,381.71/3,284.61 = 1,984.69/x
  3. Step 3: Cross multiply
    2,381.71x = 3,284.61 × 1,984.69
  4. Step 4: Simplify right side
    2,381.71x = 6,518,932.62
  5. Step 5: Solve for x
    x = 6,518,932.62/2,381.71
  6. Step 6: Final answer
    x = 2,737.08

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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.