Home / 8,130.42-12,188.28-2,935.08

Finding the Fourth Proportional to 8,130.42, 12,188.28 and 2,935.08

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Solution

The fourth proportional to 8,130.42, 12,188.28 and 2,935.08 is: 4,399.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.42 : 12,188.28 = 2,935.08 : x
  2. Step 2: Convert to fraction form
    8,130.42/12,188.28 = 2,935.08/x
  3. Step 3: Cross multiply
    8,130.42x = 12,188.28 × 2,935.08
  4. Step 4: Simplify right side
    8,130.42x = 35,773,576.86
  5. Step 5: Solve for x
    x = 35,773,576.86/8,130.42
  6. Step 6: Final answer
    x = 4,399.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.