Home / 3,328.40-4,999.80-2,356.40

Finding the Fourth Proportional to 3,328.40, 4,999.80 and 2,356.40

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Solution

The fourth proportional to 3,328.40, 4,999.80 and 2,356.40 is: 3,539.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,328.40 : 4,999.80 = 2,356.40 : x
  2. Step 2: Convert to fraction form
    3,328.40/4,999.80 = 2,356.40/x
  3. Step 3: Cross multiply
    3,328.40x = 4,999.80 × 2,356.40
  4. Step 4: Simplify right side
    3,328.40x = 11,781,528.72
  5. Step 5: Solve for x
    x = 11,781,528.72/3,328.40
  6. Step 6: Final answer
    x = 3,539.70

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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.