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Finding the Fourth Proportional to 6,599.56, 9,107.16 and 3,945.40

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Solution

The fourth proportional to 6,599.56, 9,107.16 and 3,945.40 is: 5,444.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,599.56 : 9,107.16 = 3,945.40 : x
  2. Step 2: Convert to fraction form
    6,599.56/9,107.16 = 3,945.40/x
  3. Step 3: Cross multiply
    6,599.56x = 9,107.16 × 3,945.40
  4. Step 4: Simplify right side
    6,599.56x = 35,931,389.06
  5. Step 5: Solve for x
    x = 35,931,389.06/6,599.56
  6. Step 6: Final answer
    x = 5,444.51

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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.