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Finding the Fourth Proportional to 5,879.39, 8,818.47 and 3,681.45

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Solution

The fourth proportional to 5,879.39, 8,818.47 and 3,681.45 is: 5,521.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.39 : 8,818.47 = 3,681.45 : x
  2. Step 2: Convert to fraction form
    5,879.39/8,818.47 = 3,681.45/x
  3. Step 3: Cross multiply
    5,879.39x = 8,818.47 × 3,681.45
  4. Step 4: Simplify right side
    5,879.39x = 32,464,756.38
  5. Step 5: Solve for x
    x = 32,464,756.38/5,879.39
  6. Step 6: Final answer
    x = 5,521.79

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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.