Home / 3,800.40-5,243.04-2,539.45

Finding the Fourth Proportional to 3,800.40, 5,243.04 and 2,539.45

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Solution

The fourth proportional to 3,800.40, 5,243.04 and 2,539.45 is: 3,503.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800.40 : 5,243.04 = 2,539.45 : x
  2. Step 2: Convert to fraction form
    3,800.40/5,243.04 = 2,539.45/x
  3. Step 3: Cross multiply
    3,800.40x = 5,243.04 × 2,539.45
  4. Step 4: Simplify right side
    3,800.40x = 13,314,443.04
  5. Step 5: Solve for x
    x = 13,314,443.04/3,800.40
  6. Step 6: Final answer
    x = 3,503.44

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1.5x scale

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.