Home / 1,536.13-2,111.68-1,322.65

Finding the Fourth Proportional to 1,536.13, 2,111.68 and 1,322.65

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Solution

The fourth proportional to 1,536.13, 2,111.68 and 1,322.65 is: 1,818.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536.13 : 2,111.68 = 1,322.65 : x
  2. Step 2: Convert to fraction form
    1,536.13/2,111.68 = 1,322.65/x
  3. Step 3: Cross multiply
    1,536.13x = 2,111.68 × 1,322.65
  4. Step 4: Simplify right side
    1,536.13x = 2,793,013.55
  5. Step 5: Solve for x
    x = 2,793,013.55/1,536.13
  6. Step 6: Final answer
    x = 1,818.21

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.