Home / 4,904.78-6,767.84-2,808.50

Finding the Fourth Proportional to 4,904.78, 6,767.84 and 2,808.50

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Solution

The fourth proportional to 4,904.78, 6,767.84 and 2,808.50 is: 3,875.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,904.78 : 6,767.84 = 2,808.50 : x
  2. Step 2: Convert to fraction form
    4,904.78/6,767.84 = 2,808.50/x
  3. Step 3: Cross multiply
    4,904.78x = 6,767.84 × 2,808.50
  4. Step 4: Simplify right side
    4,904.78x = 19,007,478.64
  5. Step 5: Solve for x
    x = 19,007,478.64/4,904.78
  6. Step 6: Final answer
    x = 3,875.30

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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.