Home / 1,631.95-2,251.70-923.81

Finding the Fourth Proportional to 1,631.95, 2,251.70 and 923.81

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Solution

The fourth proportional to 1,631.95, 2,251.70 and 923.81 is: 1,274.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.95 : 2,251.70 = 923.81 : x
  2. Step 2: Convert to fraction form
    1,631.95/2,251.70 = 923.81/x
  3. Step 3: Cross multiply
    1,631.95x = 2,251.70 × 923.81
  4. Step 4: Simplify right side
    1,631.95x = 2,080,130.56
  5. Step 5: Solve for x
    x = 2,080,130.56/1,631.95
  6. Step 6: Final answer
    x = 1,274.63

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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.