Home / 3,623.68-5,435.81-1,543.70

Finding the Fourth Proportional to 3,623.68, 5,435.81 and 1,543.70

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Solution

The fourth proportional to 3,623.68, 5,435.81 and 1,543.70 is: 2,315.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,623.68 : 5,435.81 = 1,543.70 : x
  2. Step 2: Convert to fraction form
    3,623.68/5,435.81 = 1,543.70/x
  3. Step 3: Cross multiply
    3,623.68x = 5,435.81 × 1,543.70
  4. Step 4: Simplify right side
    3,623.68x = 8,391,281.84
  5. Step 5: Solve for x
    x = 8,391,281.84/3,623.68
  6. Step 6: Final answer
    x = 2,315.68

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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.