Home / 4,236.61-6,351.13-2,155.45

Finding the Fourth Proportional to 4,236.61, 6,351.13 and 2,155.45

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Solution

The fourth proportional to 4,236.61, 6,351.13 and 2,155.45 is: 3,231.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,236.61 : 6,351.13 = 2,155.45 : x
  2. Step 2: Convert to fraction form
    4,236.61/6,351.13 = 2,155.45/x
  3. Step 3: Cross multiply
    4,236.61x = 6,351.13 × 2,155.45
  4. Step 4: Simplify right side
    4,236.61x = 13,689,543.16
  5. Step 5: Solve for x
    x = 13,689,543.16/4,236.61
  6. Step 6: Final answer
    x = 3,231.25

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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.