Home / 2,521.94-3,784.19-1,909.40

Finding the Fourth Proportional to 2,521.94, 3,784.19 and 1,909.40

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Solution

The fourth proportional to 2,521.94, 3,784.19 and 1,909.40 is: 2,865.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,521.94 : 3,784.19 = 1,909.40 : x
  2. Step 2: Convert to fraction form
    2,521.94/3,784.19 = 1,909.40/x
  3. Step 3: Cross multiply
    2,521.94x = 3,784.19 × 1,909.40
  4. Step 4: Simplify right side
    2,521.94x = 7,225,503.92
  5. Step 5: Solve for x
    x = 7,225,503.92/2,521.94
  6. Step 6: Final answer
    x = 2,865.06

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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.