Home / 5,246.70-7,240.50-2,889.06

Finding the Fourth Proportional to 5,246.70, 7,240.50 and 2,889.06

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Solution

The fourth proportional to 5,246.70, 7,240.50 and 2,889.06 is: 3,986.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,246.70 : 7,240.50 = 2,889.06 : x
  2. Step 2: Convert to fraction form
    5,246.70/7,240.50 = 2,889.06/x
  3. Step 3: Cross multiply
    5,246.70x = 7,240.50 × 2,889.06
  4. Step 4: Simplify right side
    5,246.70x = 20,918,238.93
  5. Step 5: Solve for x
    x = 20,918,238.93/5,246.70
  6. Step 6: Final answer
    x = 3,986.93

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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.