Home / 2,084.90-3,126.20-697.50

Finding the Fourth Proportional to 2,084.90, 3,126.20 and 697.50

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Solution

The fourth proportional to 2,084.90, 3,126.20 and 697.50 is: 1,045.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.90 : 3,126.20 = 697.50 : x
  2. Step 2: Convert to fraction form
    2,084.90/3,126.20 = 697.50/x
  3. Step 3: Cross multiply
    2,084.90x = 3,126.20 × 697.50
  4. Step 4: Simplify right side
    2,084.90x = 2,180,521.01
  5. Step 5: Solve for x
    x = 2,180,521.01/2,084.90
  6. Step 6: Final answer
    x = 1,045.87

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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.