Home / 1,862.16-2,569.84-1,022.88

Finding the Fourth Proportional to 1,862.16, 2,569.84 and 1,022.88

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Solution

The fourth proportional to 1,862.16, 2,569.84 and 1,022.88 is: 1,411.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.16 : 2,569.84 = 1,022.88 : x
  2. Step 2: Convert to fraction form
    1,862.16/2,569.84 = 1,022.88/x
  3. Step 3: Cross multiply
    1,862.16x = 2,569.84 × 1,022.88
  4. Step 4: Simplify right side
    1,862.16x = 2,628,637.94
  5. Step 5: Solve for x
    x = 2,628,637.94/1,862.16
  6. Step 6: Final answer
    x = 1,411.61

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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.