Home / 1,412.32-2,109.86-1,124.08

Finding the Fourth Proportional to 1,412.32, 2,109.86 and 1,124.08

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Solution

The fourth proportional to 1,412.32, 2,109.86 and 1,124.08 is: 1,679.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412.32 : 2,109.86 = 1,124.08 : x
  2. Step 2: Convert to fraction form
    1,412.32/2,109.86 = 1,124.08/x
  3. Step 3: Cross multiply
    1,412.32x = 2,109.86 × 1,124.08
  4. Step 4: Simplify right side
    1,412.32x = 2,371,651.43
  5. Step 5: Solve for x
    x = 2,371,651.43/1,412.32
  6. Step 6: Final answer
    x = 1,679.26

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.