Home / 2,299.87-3,171.62-1,545.36

Finding the Fourth Proportional to 2,299.87, 3,171.62 and 1,545.36

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Solution

The fourth proportional to 2,299.87, 3,171.62 and 1,545.36 is: 2,131.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.87 : 3,171.62 = 1,545.36 : x
  2. Step 2: Convert to fraction form
    2,299.87/3,171.62 = 1,545.36/x
  3. Step 3: Cross multiply
    2,299.87x = 3,171.62 × 1,545.36
  4. Step 4: Simplify right side
    2,299.87x = 4,901,271.10
  5. Step 5: Solve for x
    x = 4,901,271.10/2,299.87
  6. Step 6: Final answer
    x = 2,131.11

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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.