Home / 2,487.85-3,433.24-1,368.86

Finding the Fourth Proportional to 2,487.85, 3,433.24 and 1,368.86

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Solution

The fourth proportional to 2,487.85, 3,433.24 and 1,368.86 is: 1,889.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.85 : 3,433.24 = 1,368.86 : x
  2. Step 2: Convert to fraction form
    2,487.85/3,433.24 = 1,368.86/x
  3. Step 3: Cross multiply
    2,487.85x = 3,433.24 × 1,368.86
  4. Step 4: Simplify right side
    2,487.85x = 4,699,607.74
  5. Step 5: Solve for x
    x = 4,699,607.74/2,487.85
  6. Step 6: Final answer
    x = 1,889.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.