Home / 1,502.56-2,072.48-1,378.63

Finding the Fourth Proportional to 1,502.56, 2,072.48 and 1,378.63

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Solution

The fourth proportional to 1,502.56, 2,072.48 and 1,378.63 is: 1,901.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502.56 : 2,072.48 = 1,378.63 : x
  2. Step 2: Convert to fraction form
    1,502.56/2,072.48 = 1,378.63/x
  3. Step 3: Cross multiply
    1,502.56x = 2,072.48 × 1,378.63
  4. Step 4: Simplify right side
    1,502.56x = 2,857,181.37
  5. Step 5: Solve for x
    x = 2,857,181.37/1,502.56
  6. Step 6: Final answer
    x = 1,901.55

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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.