Home / 2,445.64-3,375.57-1,398.31

Finding the Fourth Proportional to 2,445.64, 3,375.57 and 1,398.31

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Solution

The fourth proportional to 2,445.64, 3,375.57 and 1,398.31 is: 1,930.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.64 : 3,375.57 = 1,398.31 : x
  2. Step 2: Convert to fraction form
    2,445.64/3,375.57 = 1,398.31/x
  3. Step 3: Cross multiply
    2,445.64x = 3,375.57 × 1,398.31
  4. Step 4: Simplify right side
    2,445.64x = 4,720,093.29
  5. Step 5: Solve for x
    x = 4,720,093.29/2,445.64
  6. Step 6: Final answer
    x = 1,930.00

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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.