Home / 5,175.42-7,763.93-1,887.77

Finding the Fourth Proportional to 5,175.42, 7,763.93 and 1,887.77

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Solution

The fourth proportional to 5,175.42, 7,763.93 and 1,887.77 is: 2,831.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.42 : 7,763.93 = 1,887.77 : x
  2. Step 2: Convert to fraction form
    5,175.42/7,763.93 = 1,887.77/x
  3. Step 3: Cross multiply
    5,175.42x = 7,763.93 × 1,887.77
  4. Step 4: Simplify right side
    5,175.42x = 14,656,465.88
  5. Step 5: Solve for x
    x = 14,656,465.88/5,175.42
  6. Step 6: Final answer
    x = 2,831.94

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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.