Home / 1,621.34-2,427.41-1,260.35

Finding the Fourth Proportional to 1,621.34, 2,427.41 and 1,260.35

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Solution

The fourth proportional to 1,621.34, 2,427.41 and 1,260.35 is: 1,886.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.34 : 2,427.41 = 1,260.35 : x
  2. Step 2: Convert to fraction form
    1,621.34/2,427.41 = 1,260.35/x
  3. Step 3: Cross multiply
    1,621.34x = 2,427.41 × 1,260.35
  4. Step 4: Simplify right side
    1,621.34x = 3,059,377.21
  5. Step 5: Solve for x
    x = 3,059,377.21/1,621.34
  6. Step 6: Final answer
    x = 1,886.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.