Home / 1,672.28-2,303.70-1,173.98

Finding the Fourth Proportional to 1,672.28, 2,303.70 and 1,173.98

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Solution

The fourth proportional to 1,672.28, 2,303.70 and 1,173.98 is: 1,617.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.28 : 2,303.70 = 1,173.98 : x
  2. Step 2: Convert to fraction form
    1,672.28/2,303.70 = 1,173.98/x
  3. Step 3: Cross multiply
    1,672.28x = 2,303.70 × 1,173.98
  4. Step 4: Simplify right side
    1,672.28x = 2,704,497.73
  5. Step 5: Solve for x
    x = 2,704,497.73/1,672.28
  6. Step 6: Final answer
    x = 1,617.25

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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.