Home / 2,630.03-3,941.28-1,931.21

Finding the Fourth Proportional to 2,630.03, 3,941.28 and 1,931.21

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Solution

The fourth proportional to 2,630.03, 3,941.28 and 1,931.21 is: 2,894.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.03 : 3,941.28 = 1,931.21 : x
  2. Step 2: Convert to fraction form
    2,630.03/3,941.28 = 1,931.21/x
  3. Step 3: Cross multiply
    2,630.03x = 3,941.28 × 1,931.21
  4. Step 4: Simplify right side
    2,630.03x = 7,611,456.48
  5. Step 5: Solve for x
    x = 7,611,456.48/2,630.03
  6. Step 6: Final answer
    x = 2,894.06

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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.