Home / 7,818.68-10,789.79-4,281.89

Finding the Fourth Proportional to 7,818.68, 10,789.79 and 4,281.89

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Solution

The fourth proportional to 7,818.68, 10,789.79 and 4,281.89 is: 5,909.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.68 : 10,789.79 = 4,281.89 : x
  2. Step 2: Convert to fraction form
    7,818.68/10,789.79 = 4,281.89/x
  3. Step 3: Cross multiply
    7,818.68x = 10,789.79 × 4,281.89
  4. Step 4: Simplify right side
    7,818.68x = 46,200,618.54
  5. Step 5: Solve for x
    x = 46,200,618.54/7,818.68
  6. Step 6: Final answer
    x = 5,909.01

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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.