Home / 5,276.86-7,912.37-2,159.05

Finding the Fourth Proportional to 5,276.86, 7,912.37 and 2,159.05

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Solution

The fourth proportional to 5,276.86, 7,912.37 and 2,159.05 is: 3,237.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.86 : 7,912.37 = 2,159.05 : x
  2. Step 2: Convert to fraction form
    5,276.86/7,912.37 = 2,159.05/x
  3. Step 3: Cross multiply
    5,276.86x = 7,912.37 × 2,159.05
  4. Step 4: Simplify right side
    5,276.86x = 17,083,211.43
  5. Step 5: Solve for x
    x = 17,083,211.43/5,276.86
  6. Step 6: Final answer
    x = 3,237.38

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1.5x scale

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.