Home / 1,862.89-2,569.88-1,116.57

Finding the Fourth Proportional to 1,862.89, 2,569.88 and 1,116.57

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Solution

The fourth proportional to 1,862.89, 2,569.88 and 1,116.57 is: 1,540.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.89 : 2,569.88 = 1,116.57 : x
  2. Step 2: Convert to fraction form
    1,862.89/2,569.88 = 1,116.57/x
  3. Step 3: Cross multiply
    1,862.89x = 2,569.88 × 1,116.57
  4. Step 4: Simplify right side
    1,862.89x = 2,869,457.06
  5. Step 5: Solve for x
    x = 2,869,457.06/1,862.89
  6. Step 6: Final answer
    x = 1,540.33

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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.