Home / 1,821.04-2,720.72-1,350.40

Finding the Fourth Proportional to 1,821.04, 2,720.72 and 1,350.40

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Solution

The fourth proportional to 1,821.04, 2,720.72 and 1,350.40 is: 2,017.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.04 : 2,720.72 = 1,350.40 : x
  2. Step 2: Convert to fraction form
    1,821.04/2,720.72 = 1,350.40/x
  3. Step 3: Cross multiply
    1,821.04x = 2,720.72 × 1,350.40
  4. Step 4: Simplify right side
    1,821.04x = 3,674,060.29
  5. Step 5: Solve for x
    x = 3,674,060.29/1,821.04
  6. Step 6: Final answer
    x = 2,017.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.