Home / 1,511.87-2,257.54-1,325.36

Finding the Fourth Proportional to 1,511.87, 2,257.54 and 1,325.36

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Solution

The fourth proportional to 1,511.87, 2,257.54 and 1,325.36 is: 1,979.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.87 : 2,257.54 = 1,325.36 : x
  2. Step 2: Convert to fraction form
    1,511.87/2,257.54 = 1,325.36/x
  3. Step 3: Cross multiply
    1,511.87x = 2,257.54 × 1,325.36
  4. Step 4: Simplify right side
    1,511.87x = 2,992,055.54
  5. Step 5: Solve for x
    x = 2,992,055.54/1,511.87
  6. Step 6: Final answer
    x = 1,979.05

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1.5x scale

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.