Home / 2,804.12-3,869.66-1,545.15

Finding the Fourth Proportional to 2,804.12, 3,869.66 and 1,545.15

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Solution

The fourth proportional to 2,804.12, 3,869.66 and 1,545.15 is: 2,132.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,804.12 : 3,869.66 = 1,545.15 : x
  2. Step 2: Convert to fraction form
    2,804.12/3,869.66 = 1,545.15/x
  3. Step 3: Cross multiply
    2,804.12x = 3,869.66 × 1,545.15
  4. Step 4: Simplify right side
    2,804.12x = 5,979,205.15
  5. Step 5: Solve for x
    x = 5,979,205.15/2,804.12
  6. Step 6: Final answer
    x = 2,132.29

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1.5x scale

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.