Home / 1,912.61-2,868.99-526.08

Finding the Fourth Proportional to 1,912.61, 2,868.99 and 526.08

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Solution

The fourth proportional to 1,912.61, 2,868.99 and 526.08 is: 789.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912.61 : 2,868.99 = 526.08 : x
  2. Step 2: Convert to fraction form
    1,912.61/2,868.99 = 526.08/x
  3. Step 3: Cross multiply
    1,912.61x = 2,868.99 × 526.08
  4. Step 4: Simplify right side
    1,912.61x = 1,509,318.26
  5. Step 5: Solve for x
    x = 1,509,318.26/1,912.61
  6. Step 6: Final answer
    x = 789.14

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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.