Home / 2,120.85-2,925.32-1,747.24

Finding the Fourth Proportional to 2,120.85, 2,925.32 and 1,747.24

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Solution

The fourth proportional to 2,120.85, 2,925.32 and 1,747.24 is: 2,409.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.85 : 2,925.32 = 1,747.24 : x
  2. Step 2: Convert to fraction form
    2,120.85/2,925.32 = 1,747.24/x
  3. Step 3: Cross multiply
    2,120.85x = 2,925.32 × 1,747.24
  4. Step 4: Simplify right side
    2,120.85x = 5,111,220.07
  5. Step 5: Solve for x
    x = 5,111,220.07/2,120.85
  6. Step 6: Final answer
    x = 2,409.99

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.