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Finding the Fourth Proportional to 2,888.97, 3,986.81 and 1,562.67

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Solution

The fourth proportional to 2,888.97, 3,986.81 and 1,562.67 is: 2,156.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.97 : 3,986.81 = 1,562.67 : x
  2. Step 2: Convert to fraction form
    2,888.97/3,986.81 = 1,562.67/x
  3. Step 3: Cross multiply
    2,888.97x = 3,986.81 × 1,562.67
  4. Step 4: Simplify right side
    2,888.97x = 6,230,060.57
  5. Step 5: Solve for x
    x = 6,230,060.57/2,888.97
  6. Step 6: Final answer
    x = 2,156.50

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1.5x scale

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.