Home / 2,111.24-2,913.70-1,401.83

Finding the Fourth Proportional to 2,111.24, 2,913.70 and 1,401.83

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Solution

The fourth proportional to 2,111.24, 2,913.70 and 1,401.83 is: 1,934.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111.24 : 2,913.70 = 1,401.83 : x
  2. Step 2: Convert to fraction form
    2,111.24/2,913.70 = 1,401.83/x
  3. Step 3: Cross multiply
    2,111.24x = 2,913.70 × 1,401.83
  4. Step 4: Simplify right side
    2,111.24x = 4,084,512.07
  5. Step 5: Solve for x
    x = 4,084,512.07/2,111.24
  6. Step 6: Final answer
    x = 1,934.65

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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.