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Finding the Fourth Proportional to 6,788.81, 10,182.76 and 1,858.49

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Solution

The fourth proportional to 6,788.81, 10,182.76 and 1,858.49 is: 2,787.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,788.81 : 10,182.76 = 1,858.49 : x
  2. Step 2: Convert to fraction form
    6,788.81/10,182.76 = 1,858.49/x
  3. Step 3: Cross multiply
    6,788.81x = 10,182.76 × 1,858.49
  4. Step 4: Simplify right side
    6,788.81x = 18,924,607.99
  5. Step 5: Solve for x
    x = 18,924,607.99/6,788.81
  6. Step 6: Final answer
    x = 2,787.62

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1.5x scale

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.