Home / 1,809.53-2,497.74-1,391.27

Finding the Fourth Proportional to 1,809.53, 2,497.74 and 1,391.27

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Solution

The fourth proportional to 1,809.53, 2,497.74 and 1,391.27 is: 1,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.53 : 2,497.74 = 1,391.27 : x
  2. Step 2: Convert to fraction form
    1,809.53/2,497.74 = 1,391.27/x
  3. Step 3: Cross multiply
    1,809.53x = 2,497.74 × 1,391.27
  4. Step 4: Simplify right side
    1,809.53x = 3,475,011.28
  5. Step 5: Solve for x
    x = 3,475,011.28/1,809.53
  6. Step 6: Final answer
    x = 1,920.40

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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.