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Finding the Fourth Proportional to 6,347.60, 8,759.70 and 3,553.10

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Solution

The fourth proportional to 6,347.60, 8,759.70 and 3,553.10 is: 4,903.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,347.60 : 8,759.70 = 3,553.10 : x
  2. Step 2: Convert to fraction form
    6,347.60/8,759.70 = 3,553.10/x
  3. Step 3: Cross multiply
    6,347.60x = 8,759.70 × 3,553.10
  4. Step 4: Simplify right side
    6,347.60x = 31,124,090.07
  5. Step 5: Solve for x
    x = 31,124,090.07/6,347.60
  6. Step 6: Final answer
    x = 4,903.28

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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.