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Finding the Fourth Proportional to 6,455.70, 8,901.09 and 4,965.30

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Solution

The fourth proportional to 6,455.70, 8,901.09 and 4,965.30 is: 6,846.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455.70 : 8,901.09 = 4,965.30 : x
  2. Step 2: Convert to fraction form
    6,455.70/8,901.09 = 4,965.30/x
  3. Step 3: Cross multiply
    6,455.70x = 8,901.09 × 4,965.30
  4. Step 4: Simplify right side
    6,455.70x = 44,196,582.18
  5. Step 5: Solve for x
    x = 44,196,582.18/6,455.70
  6. Step 6: Final answer
    x = 6,846.13

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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.