Home / 1,445.96-1,996.58-1,335.40

Finding the Fourth Proportional to 1,445.96, 1,996.58 and 1,335.40

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Solution

The fourth proportional to 1,445.96, 1,996.58 and 1,335.40 is: 1,843.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.96 : 1,996.58 = 1,335.40 : x
  2. Step 2: Convert to fraction form
    1,445.96/1,996.58 = 1,335.40/x
  3. Step 3: Cross multiply
    1,445.96x = 1,996.58 × 1,335.40
  4. Step 4: Simplify right side
    1,445.96x = 2,666,232.93
  5. Step 5: Solve for x
    x = 2,666,232.93/1,445.96
  6. Step 6: Final answer
    x = 1,843.92

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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.