Home / 1,641.28-2,263.44-1,267.70

Finding the Fourth Proportional to 1,641.28, 2,263.44 and 1,267.70

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Solution

The fourth proportional to 1,641.28, 2,263.44 and 1,267.70 is: 1,748.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,641.28 : 2,263.44 = 1,267.70 : x
  2. Step 2: Convert to fraction form
    1,641.28/2,263.44 = 1,267.70/x
  3. Step 3: Cross multiply
    1,641.28x = 2,263.44 × 1,267.70
  4. Step 4: Simplify right side
    1,641.28x = 2,869,362.89
  5. Step 5: Solve for x
    x = 2,869,362.89/1,641.28
  6. Step 6: Final answer
    x = 1,748.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.