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Finding the Fourth Proportional to 6,689.85, 9,236.31 and 4,300.89

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Solution

The fourth proportional to 6,689.85, 9,236.31 and 4,300.89 is: 5,938.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,689.85 : 9,236.31 = 4,300.89 : x
  2. Step 2: Convert to fraction form
    6,689.85/9,236.31 = 4,300.89/x
  3. Step 3: Cross multiply
    6,689.85x = 9,236.31 × 4,300.89
  4. Step 4: Simplify right side
    6,689.85x = 39,724,353.32
  5. Step 5: Solve for x
    x = 39,724,353.32/6,689.85
  6. Step 6: Final answer
    x = 5,938.00

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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.