Home / 2,153.96-2,973.21-1,269.71

Finding the Fourth Proportional to 2,153.96, 2,973.21 and 1,269.71

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Solution

The fourth proportional to 2,153.96, 2,973.21 and 1,269.71 is: 1,752.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.96 : 2,973.21 = 1,269.71 : x
  2. Step 2: Convert to fraction form
    2,153.96/2,973.21 = 1,269.71/x
  3. Step 3: Cross multiply
    2,153.96x = 2,973.21 × 1,269.71
  4. Step 4: Simplify right side
    2,153.96x = 3,775,105.99
  5. Step 5: Solve for x
    x = 3,775,105.99/2,153.96
  6. Step 6: Final answer
    x = 1,752.64

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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.