Home / 6,789.60-10,184.40-1,858.87

Finding the Fourth Proportional to 6,789.60, 10,184.40 and 1,858.87

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Solution

The fourth proportional to 6,789.60, 10,184.40 and 1,858.87 is: 2,788.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,789.60 : 10,184.40 = 1,858.87 : x
  2. Step 2: Convert to fraction form
    6,789.60/10,184.40 = 1,858.87/x
  3. Step 3: Cross multiply
    6,789.60x = 10,184.40 × 1,858.87
  4. Step 4: Simplify right side
    6,789.60x = 18,931,475.63
  5. Step 5: Solve for x
    x = 18,931,475.63/6,789.60
  6. Step 6: Final answer
    x = 2,788.31

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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.