Home / 2,624.86-3,938.64-1,587.34

Finding the Fourth Proportional to 2,624.86, 3,938.64 and 1,587.34

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Solution

The fourth proportional to 2,624.86, 3,938.64 and 1,587.34 is: 2,381.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,624.86 : 3,938.64 = 1,587.34 : x
  2. Step 2: Convert to fraction form
    2,624.86/3,938.64 = 1,587.34/x
  3. Step 3: Cross multiply
    2,624.86x = 3,938.64 × 1,587.34
  4. Step 4: Simplify right side
    2,624.86x = 6,251,960.82
  5. Step 5: Solve for x
    x = 6,251,960.82/2,624.86
  6. Step 6: Final answer
    x = 2,381.83

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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.