Home / 2,487.90-3,433.30-1,368.94

Finding the Fourth Proportional to 2,487.90, 3,433.30 and 1,368.94

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Solution

The fourth proportional to 2,487.90, 3,433.30 and 1,368.94 is: 1,889.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.90 : 3,433.30 = 1,368.94 : x
  2. Step 2: Convert to fraction form
    2,487.90/3,433.30 = 1,368.94/x
  3. Step 3: Cross multiply
    2,487.90x = 3,433.30 × 1,368.94
  4. Step 4: Simplify right side
    2,487.90x = 4,699,981.70
  5. Step 5: Solve for x
    x = 4,699,981.70/2,487.90
  6. Step 6: Final answer
    x = 1,889.14

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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.