Home / 3,218.13-4,823.89-1,828.50

Finding the Fourth Proportional to 3,218.13, 4,823.89 and 1,828.50

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Solution

The fourth proportional to 3,218.13, 4,823.89 and 1,828.50 is: 2,740.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.13 : 4,823.89 = 1,828.50 : x
  2. Step 2: Convert to fraction form
    3,218.13/4,823.89 = 1,828.50/x
  3. Step 3: Cross multiply
    3,218.13x = 4,823.89 × 1,828.50
  4. Step 4: Simplify right side
    3,218.13x = 8,820,482.87
  5. Step 5: Solve for x
    x = 8,820,482.87/3,218.13
  6. Step 6: Final answer
    x = 2,740.87

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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.