Home / 4,918.79-6,787.40-2,764.98

Finding the Fourth Proportional to 4,918.79, 6,787.40 and 2,764.98

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Solution

The fourth proportional to 4,918.79, 6,787.40 and 2,764.98 is: 3,815.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.79 : 6,787.40 = 2,764.98 : x
  2. Step 2: Convert to fraction form
    4,918.79/6,787.40 = 2,764.98/x
  3. Step 3: Cross multiply
    4,918.79x = 6,787.40 × 2,764.98
  4. Step 4: Simplify right side
    4,918.79x = 18,767,011.43
  5. Step 5: Solve for x
    x = 18,767,011.43/4,918.79
  6. Step 6: Final answer
    x = 3,815.38

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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.