Home / 1,316.66-1,819.40-1,252.60

Finding the Fourth Proportional to 1,316.66, 1,819.40 and 1,252.60

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Solution

The fourth proportional to 1,316.66, 1,819.40 and 1,252.60 is: 1,730.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.66 : 1,819.40 = 1,252.60 : x
  2. Step 2: Convert to fraction form
    1,316.66/1,819.40 = 1,252.60/x
  3. Step 3: Cross multiply
    1,316.66x = 1,819.40 × 1,252.60
  4. Step 4: Simplify right side
    1,316.66x = 2,278,971.34
  5. Step 5: Solve for x
    x = 2,278,971.34/1,316.66
  6. Step 6: Final answer
    x = 1,730.87

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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.