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Finding the Fourth Proportional to 5,678.91, 8,518.46 and 2,897.73

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Solution

The fourth proportional to 5,678.91, 8,518.46 and 2,897.73 is: 4,346.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.91 : 8,518.46 = 2,897.73 : x
  2. Step 2: Convert to fraction form
    5,678.91/8,518.46 = 2,897.73/x
  3. Step 3: Cross multiply
    5,678.91x = 8,518.46 × 2,897.73
  4. Step 4: Simplify right side
    5,678.91x = 24,684,182.61
  5. Step 5: Solve for x
    x = 24,684,182.61/5,678.91
  6. Step 6: Final answer
    x = 4,346.64

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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.