Home / 1,912.93-2,869.07-525.94

Finding the Fourth Proportional to 1,912.93, 2,869.07 and 525.94

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Solution

The fourth proportional to 1,912.93, 2,869.07 and 525.94 is: 788.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912.93 : 2,869.07 = 525.94 : x
  2. Step 2: Convert to fraction form
    1,912.93/2,869.07 = 525.94/x
  3. Step 3: Cross multiply
    1,912.93x = 2,869.07 × 525.94
  4. Step 4: Simplify right side
    1,912.93x = 1,508,948.87
  5. Step 5: Solve for x
    x = 1,508,948.87/1,912.93
  6. Step 6: Final answer
    x = 788.82

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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.