Home / 1,969.25-2,717.34-1,129.93

Finding the Fourth Proportional to 1,969.25, 2,717.34 and 1,129.93

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Solution

The fourth proportional to 1,969.25, 2,717.34 and 1,129.93 is: 1,559.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969.25 : 2,717.34 = 1,129.93 : x
  2. Step 2: Convert to fraction form
    1,969.25/2,717.34 = 1,129.93/x
  3. Step 3: Cross multiply
    1,969.25x = 2,717.34 × 1,129.93
  4. Step 4: Simplify right side
    1,969.25x = 3,070,397.19
  5. Step 5: Solve for x
    x = 3,070,397.19/1,969.25
  6. Step 6: Final answer
    x = 1,559.17

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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.