Home / 6,942.80-10,407.51-2,557.86

Finding the Fourth Proportional to 6,942.80, 10,407.51 and 2,557.86

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Solution

The fourth proportional to 6,942.80, 10,407.51 and 2,557.86 is: 3,834.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,942.80 : 10,407.51 = 2,557.86 : x
  2. Step 2: Convert to fraction form
    6,942.80/10,407.51 = 2,557.86/x
  3. Step 3: Cross multiply
    6,942.80x = 10,407.51 × 2,557.86
  4. Step 4: Simplify right side
    6,942.80x = 26,620,953.53
  5. Step 5: Solve for x
    x = 26,620,953.53/6,942.80
  6. Step 6: Final answer
    x = 3,834.33

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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.