Home / 3,184.70-4,394.91-1,787.45

Finding the Fourth Proportional to 3,184.70, 4,394.91 and 1,787.45

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Solution

The fourth proportional to 3,184.70, 4,394.91 and 1,787.45 is: 2,466.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,184.70 : 4,394.91 = 1,787.45 : x
  2. Step 2: Convert to fraction form
    3,184.70/4,394.91 = 1,787.45/x
  3. Step 3: Cross multiply
    3,184.70x = 4,394.91 × 1,787.45
  4. Step 4: Simplify right side
    3,184.70x = 7,855,659.90
  5. Step 5: Solve for x
    x = 7,855,659.90/3,184.70
  6. Step 6: Final answer
    x = 2,466.69

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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.