Home / 2,397.87-3,308.70-1,403.28

Finding the Fourth Proportional to 2,397.87, 3,308.70 and 1,403.28

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Solution

The fourth proportional to 2,397.87, 3,308.70 and 1,403.28 is: 1,936.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,397.87 : 3,308.70 = 1,403.28 : x
  2. Step 2: Convert to fraction form
    2,397.87/3,308.70 = 1,403.28/x
  3. Step 3: Cross multiply
    2,397.87x = 3,308.70 × 1,403.28
  4. Step 4: Simplify right side
    2,397.87x = 4,643,032.54
  5. Step 5: Solve for x
    x = 4,643,032.54/2,397.87
  6. Step 6: Final answer
    x = 1,936.32

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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.