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Finding the Fourth Proportional to 7,886.70, 10,883.61 and 4,349.91

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Solution

The fourth proportional to 7,886.70, 10,883.61 and 4,349.91 is: 6,002.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.70 : 10,883.61 = 4,349.91 : x
  2. Step 2: Convert to fraction form
    7,886.70/10,883.61 = 4,349.91/x
  3. Step 3: Cross multiply
    7,886.70x = 10,883.61 × 4,349.91
  4. Step 4: Simplify right side
    7,886.70x = 47,342,723.98
  5. Step 5: Solve for x
    x = 47,342,723.98/7,886.70
  6. Step 6: Final answer
    x = 6,002.86

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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.