Home / 4,787.79-7,184.52-1,868.55

Finding the Fourth Proportional to 4,787.79, 7,184.52 and 1,868.55

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Solution

The fourth proportional to 4,787.79, 7,184.52 and 1,868.55 is: 2,803.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.79 : 7,184.52 = 1,868.55 : x
  2. Step 2: Convert to fraction form
    4,787.79/7,184.52 = 1,868.55/x
  3. Step 3: Cross multiply
    4,787.79x = 7,184.52 × 1,868.55
  4. Step 4: Simplify right side
    4,787.79x = 13,424,634.85
  5. Step 5: Solve for x
    x = 13,424,634.85/4,787.79
  6. Step 6: Final answer
    x = 2,803.93

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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.