Home / 2,231.79-3,080.93-1,569.21

Finding the Fourth Proportional to 2,231.79, 3,080.93 and 1,569.21

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Solution

The fourth proportional to 2,231.79, 3,080.93 and 1,569.21 is: 2,166.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.79 : 3,080.93 = 1,569.21 : x
  2. Step 2: Convert to fraction form
    2,231.79/3,080.93 = 1,569.21/x
  3. Step 3: Cross multiply
    2,231.79x = 3,080.93 × 1,569.21
  4. Step 4: Simplify right side
    2,231.79x = 4,834,626.17
  5. Step 5: Solve for x
    x = 4,834,626.17/2,231.79
  6. Step 6: Final answer
    x = 2,166.25

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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.