Home / 5,247.71-7,241.84-2,889.86

Finding the Fourth Proportional to 5,247.71, 7,241.84 and 2,889.86

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Solution

The fourth proportional to 5,247.71, 7,241.84 and 2,889.86 is: 3,988.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.71 : 7,241.84 = 2,889.86 : x
  2. Step 2: Convert to fraction form
    5,247.71/7,241.84 = 2,889.86/x
  3. Step 3: Cross multiply
    5,247.71x = 7,241.84 × 2,889.86
  4. Step 4: Simplify right side
    5,247.71x = 20,927,889.29
  5. Step 5: Solve for x
    x = 20,927,889.29/5,247.71
  6. Step 6: Final answer
    x = 3,988.00

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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.