Home / 1,932.85-2,898.67-1,111.51

Finding the Fourth Proportional to 1,932.85, 2,898.67 and 1,111.51

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Solution

The fourth proportional to 1,932.85, 2,898.67 and 1,111.51 is: 1,666.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932.85 : 2,898.67 = 1,111.51 : x
  2. Step 2: Convert to fraction form
    1,932.85/2,898.67 = 1,111.51/x
  3. Step 3: Cross multiply
    1,932.85x = 2,898.67 × 1,111.51
  4. Step 4: Simplify right side
    1,932.85x = 3,221,900.69
  5. Step 5: Solve for x
    x = 3,221,900.69/1,932.85
  6. Step 6: Final answer
    x = 1,666.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.