Home / 3,184.89-4,395.16-1,787.64

Finding the Fourth Proportional to 3,184.89, 4,395.16 and 1,787.64

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Solution

The fourth proportional to 3,184.89, 4,395.16 and 1,787.64 is: 2,466.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,184.89 : 4,395.16 = 1,787.64 : x
  2. Step 2: Convert to fraction form
    3,184.89/4,395.16 = 1,787.64/x
  3. Step 3: Cross multiply
    3,184.89x = 4,395.16 × 1,787.64
  4. Step 4: Simplify right side
    3,184.89x = 7,856,963.82
  5. Step 5: Solve for x
    x = 7,856,963.82/3,184.89
  6. Step 6: Final answer
    x = 2,466.95

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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.