Home / 1,815.41-2,502.91-1,176.21

Finding the Fourth Proportional to 1,815.41, 2,502.91 and 1,176.21

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Solution

The fourth proportional to 1,815.41, 2,502.91 and 1,176.21 is: 1,621.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.41 : 2,502.91 = 1,176.21 : x
  2. Step 2: Convert to fraction form
    1,815.41/2,502.91 = 1,176.21/x
  3. Step 3: Cross multiply
    1,815.41x = 2,502.91 × 1,176.21
  4. Step 4: Simplify right side
    1,815.41x = 2,943,947.77
  5. Step 5: Solve for x
    x = 2,943,947.77/1,815.41
  6. Step 6: Final answer
    x = 1,621.64

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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.