Home / 7,789.68-10,748.16-4,602.78

Finding the Fourth Proportional to 7,789.68, 10,748.16 and 4,602.78

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Solution

The fourth proportional to 7,789.68, 10,748.16 and 4,602.78 is: 6,350.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.68 : 10,748.16 = 4,602.78 : x
  2. Step 2: Convert to fraction form
    7,789.68/10,748.16 = 4,602.78/x
  3. Step 3: Cross multiply
    7,789.68x = 10,748.16 × 4,602.78
  4. Step 4: Simplify right side
    7,789.68x = 49,471,415.88
  5. Step 5: Solve for x
    x = 49,471,415.88/7,789.68
  6. Step 6: Final answer
    x = 6,350.89

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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.