Home / 1,821.12-2,529.99-1,804.01

Finding the Fourth Proportional to 1,821.12, 2,529.99 and 1,804.01

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Solution

The fourth proportional to 1,821.12, 2,529.99 and 1,804.01 is: 2,506.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.12 : 2,529.99 = 1,804.01 : x
  2. Step 2: Convert to fraction form
    1,821.12/2,529.99 = 1,804.01/x
  3. Step 3: Cross multiply
    1,821.12x = 2,529.99 × 1,804.01
  4. Step 4: Simplify right side
    1,821.12x = 4,564,114.61
  5. Step 5: Solve for x
    x = 4,564,114.61/1,821.12
  6. Step 6: Final answer
    x = 2,506.21

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.