Home / 3,155.18-4,353.87-1,828.46

Finding the Fourth Proportional to 3,155.18, 4,353.87 and 1,828.46

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Solution

The fourth proportional to 3,155.18, 4,353.87 and 1,828.46 is: 2,523.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.18 : 4,353.87 = 1,828.46 : x
  2. Step 2: Convert to fraction form
    3,155.18/4,353.87 = 1,828.46/x
  3. Step 3: Cross multiply
    3,155.18x = 4,353.87 × 1,828.46
  4. Step 4: Simplify right side
    3,155.18x = 7,960,877.14
  5. Step 5: Solve for x
    x = 7,960,877.14/3,155.18
  6. Step 6: Final answer
    x = 2,523.11

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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.