Home / 1,427.83-2,142.36-606.29

Finding the Fourth Proportional to 1,427.83, 2,142.36 and 606.29

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Solution

The fourth proportional to 1,427.83, 2,142.36 and 606.29 is: 909.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427.83 : 2,142.36 = 606.29 : x
  2. Step 2: Convert to fraction form
    1,427.83/2,142.36 = 606.29/x
  3. Step 3: Cross multiply
    1,427.83x = 2,142.36 × 606.29
  4. Step 4: Simplify right side
    1,427.83x = 1,298,880.73
  5. Step 5: Solve for x
    x = 1,298,880.73/1,427.83
  6. Step 6: Final answer
    x = 909.69

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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.