Home / 2,435.38-3,360.75-1,387.39

Finding the Fourth Proportional to 2,435.38, 3,360.75 and 1,387.39

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Solution

The fourth proportional to 2,435.38, 3,360.75 and 1,387.39 is: 1,914.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,435.38 : 3,360.75 = 1,387.39 : x
  2. Step 2: Convert to fraction form
    2,435.38/3,360.75 = 1,387.39/x
  3. Step 3: Cross multiply
    2,435.38x = 3,360.75 × 1,387.39
  4. Step 4: Simplify right side
    2,435.38x = 4,662,670.94
  5. Step 5: Solve for x
    x = 4,662,670.94/2,435.38
  6. Step 6: Final answer
    x = 1,914.56

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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.