Home / 5,254.42-7,879.28-1,555.96

Finding the Fourth Proportional to 5,254.42, 7,879.28 and 1,555.96

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Solution

The fourth proportional to 5,254.42, 7,879.28 and 1,555.96 is: 2,333.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,254.42 : 7,879.28 = 1,555.96 : x
  2. Step 2: Convert to fraction form
    5,254.42/7,879.28 = 1,555.96/x
  3. Step 3: Cross multiply
    5,254.42x = 7,879.28 × 1,555.96
  4. Step 4: Simplify right side
    5,254.42x = 12,259,831.80
  5. Step 5: Solve for x
    x = 12,259,831.80/5,254.42
  6. Step 6: Final answer
    x = 2,333.24

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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.