Home / 5,429.16-8,156.78-3,485.16

Finding the Fourth Proportional to 5,429.16, 8,156.78 and 3,485.16

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Solution

The fourth proportional to 5,429.16, 8,156.78 and 3,485.16 is: 5,236.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.16 : 8,156.78 = 3,485.16 : x
  2. Step 2: Convert to fraction form
    5,429.16/8,156.78 = 3,485.16/x
  3. Step 3: Cross multiply
    5,429.16x = 8,156.78 × 3,485.16
  4. Step 4: Simplify right side
    5,429.16x = 28,427,683.38
  5. Step 5: Solve for x
    x = 28,427,683.38/5,429.16
  6. Step 6: Final answer
    x = 5,236.11

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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.