Home / 3,356.40-5,032.88-1,970

Finding the Fourth Proportional to 3,356.40, 5,032.88 and 1,970

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Solution

The fourth proportional to 3,356.40, 5,032.88 and 1,970 is: 2,953.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,356.40 : 5,032.88 = 1,970 : x
  2. Step 2: Convert to fraction form
    3,356.40/5,032.88 = 1,970/x
  3. Step 3: Cross multiply
    3,356.40x = 5,032.88 × 1,970
  4. Step 4: Simplify right side
    3,356.40x = 9,914,773.60
  5. Step 5: Solve for x
    x = 9,914,773.60/3,356.40
  6. Step 6: Final answer
    x = 2,953.99

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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.