Home / 2,135.59-2,947.53-1,251.49

Finding the Fourth Proportional to 2,135.59, 2,947.53 and 1,251.49

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Solution

The fourth proportional to 2,135.59, 2,947.53 and 1,251.49 is: 1,727.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.59 : 2,947.53 = 1,251.49 : x
  2. Step 2: Convert to fraction form
    2,135.59/2,947.53 = 1,251.49/x
  3. Step 3: Cross multiply
    2,135.59x = 2,947.53 × 1,251.49
  4. Step 4: Simplify right side
    2,135.59x = 3,688,804.32
  5. Step 5: Solve for x
    x = 3,688,804.32/2,135.59
  6. Step 6: Final answer
    x = 1,727.30

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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.