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Finding the Fourth Proportional to 6,431.67, 8,875.89 and 3,599.01

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Solution

The fourth proportional to 6,431.67, 8,875.89 and 3,599.01 is: 4,966.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,431.67 : 8,875.89 = 3,599.01 : x
  2. Step 2: Convert to fraction form
    6,431.67/8,875.89 = 3,599.01/x
  3. Step 3: Cross multiply
    6,431.67x = 8,875.89 × 3,599.01
  4. Step 4: Simplify right side
    6,431.67x = 31,944,416.87
  5. Step 5: Solve for x
    x = 31,944,416.87/6,431.67
  6. Step 6: Final answer
    x = 4,966.74

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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.