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Finding the Fourth Proportional to 6,345.48, 8,756.66 and 3,551

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Solution

The fourth proportional to 6,345.48, 8,756.66 and 3,551 is: 4,900.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,345.48 : 8,756.66 = 3,551 : x
  2. Step 2: Convert to fraction form
    6,345.48/8,756.66 = 3,551/x
  3. Step 3: Cross multiply
    6,345.48x = 8,756.66 × 3,551
  4. Step 4: Simplify right side
    6,345.48x = 31,094,899.66
  5. Step 5: Solve for x
    x = 31,094,899.66/6,345.48
  6. Step 6: Final answer
    x = 4,900.32

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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.