Home / 5,261.86-7,261.32-2,903.98

Finding the Fourth Proportional to 5,261.86, 7,261.32 and 2,903.98

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Solution

The fourth proportional to 5,261.86, 7,261.32 and 2,903.98 is: 4,007.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.86 : 7,261.32 = 2,903.98 : x
  2. Step 2: Convert to fraction form
    5,261.86/7,261.32 = 2,903.98/x
  3. Step 3: Cross multiply
    5,261.86x = 7,261.32 × 2,903.98
  4. Step 4: Simplify right side
    5,261.86x = 21,086,728.05
  5. Step 5: Solve for x
    x = 21,086,728.05/5,261.86
  6. Step 6: Final answer
    x = 4,007.47

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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.