Home / 1,316.24-1,818.68-1,269.52

Finding the Fourth Proportional to 1,316.24, 1,818.68 and 1,269.52

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Solution

The fourth proportional to 1,316.24, 1,818.68 and 1,269.52 is: 1,754.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.24 : 1,818.68 = 1,269.52 : x
  2. Step 2: Convert to fraction form
    1,316.24/1,818.68 = 1,269.52/x
  3. Step 3: Cross multiply
    1,316.24x = 1,818.68 × 1,269.52
  4. Step 4: Simplify right side
    1,316.24x = 2,308,850.63
  5. Step 5: Solve for x
    x = 2,308,850.63/1,316.24
  6. Step 6: Final answer
    x = 1,754.13

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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.