Home / 7,819.40-10,789.62-4,461.32

Finding the Fourth Proportional to 7,819.40, 10,789.62 and 4,461.32

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Solution

The fourth proportional to 7,819.40, 10,789.62 and 4,461.32 is: 6,155.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.40 : 10,789.62 = 4,461.32 : x
  2. Step 2: Convert to fraction form
    7,819.40/10,789.62 = 4,461.32/x
  3. Step 3: Cross multiply
    7,819.40x = 10,789.62 × 4,461.32
  4. Step 4: Simplify right side
    7,819.40x = 48,135,947.50
  5. Step 5: Solve for x
    x = 48,135,947.50/7,819.40
  6. Step 6: Final answer
    x = 6,155.96

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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.