Home / 1,319.09-1,819.14-1,132.52

Finding the Fourth Proportional to 1,319.09, 1,819.14 and 1,132.52

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Solution

The fourth proportional to 1,319.09, 1,819.14 and 1,132.52 is: 1,561.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319.09 : 1,819.14 = 1,132.52 : x
  2. Step 2: Convert to fraction form
    1,319.09/1,819.14 = 1,132.52/x
  3. Step 3: Cross multiply
    1,319.09x = 1,819.14 × 1,132.52
  4. Step 4: Simplify right side
    1,319.09x = 2,060,212.43
  5. Step 5: Solve for x
    x = 2,060,212.43/1,319.09
  6. Step 6: Final answer
    x = 1,561.84

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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.