Home / 3,338.40-4,605.36-2,160.48

Finding the Fourth Proportional to 3,338.40, 4,605.36 and 2,160.48

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Solution

The fourth proportional to 3,338.40, 4,605.36 and 2,160.48 is: 2,980.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,338.40 : 4,605.36 = 2,160.48 : x
  2. Step 2: Convert to fraction form
    3,338.40/4,605.36 = 2,160.48/x
  3. Step 3: Cross multiply
    3,338.40x = 4,605.36 × 2,160.48
  4. Step 4: Simplify right side
    3,338.40x = 9,949,788.17
  5. Step 5: Solve for x
    x = 9,949,788.17/3,338.40
  6. Step 6: Final answer
    x = 2,980.41

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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.