Home / 3,488.42-5,231.14-1,407.86

Finding the Fourth Proportional to 3,488.42, 5,231.14 and 1,407.86

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Solution

The fourth proportional to 3,488.42, 5,231.14 and 1,407.86 is: 2,111.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.42 : 5,231.14 = 1,407.86 : x
  2. Step 2: Convert to fraction form
    3,488.42/5,231.14 = 1,407.86/x
  3. Step 3: Cross multiply
    3,488.42x = 5,231.14 × 1,407.86
  4. Step 4: Simplify right side
    3,488.42x = 7,364,712.76
  5. Step 5: Solve for x
    x = 7,364,712.76/3,488.42
  6. Step 6: Final answer
    x = 2,111.19

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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.