Home / 1,555.79-2,149.04-1,162.13

Finding the Fourth Proportional to 1,555.79, 2,149.04 and 1,162.13

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Solution

The fourth proportional to 1,555.79, 2,149.04 and 1,162.13 is: 1,605.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.79 : 2,149.04 = 1,162.13 : x
  2. Step 2: Convert to fraction form
    1,555.79/2,149.04 = 1,162.13/x
  3. Step 3: Cross multiply
    1,555.79x = 2,149.04 × 1,162.13
  4. Step 4: Simplify right side
    1,555.79x = 2,497,458.04
  5. Step 5: Solve for x
    x = 2,497,458.04/1,555.79
  6. Step 6: Final answer
    x = 1,605.27

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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.