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Finding the Fourth Proportional to 6,440.52, 8,866.49 and 5,776.23

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Solution

The fourth proportional to 6,440.52, 8,866.49 and 5,776.23 is: 7,951.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.52 : 8,866.49 = 5,776.23 : x
  2. Step 2: Convert to fraction form
    6,440.52/8,866.49 = 5,776.23/x
  3. Step 3: Cross multiply
    6,440.52x = 8,866.49 × 5,776.23
  4. Step 4: Simplify right side
    6,440.52x = 51,214,885.53
  5. Step 5: Solve for x
    x = 51,214,885.53/6,440.52
  6. Step 6: Final answer
    x = 7,951.98

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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.